Modular Laser Diode Collimation Systems

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Nov 15, 2013 (3 years and 7 months ago)

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Kollis_20C_Titelseite.indd • Page 32
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

info@SuKHamburg.de

www.SuKHamburg.com
32
2012 E
Collimators
20C-.../20P-... 21P-... /
22P-... (page 33f)
Collimators
50BM-... (page35ff)
Collimators
55BC-... (page 38)
Collimators 48TE-SOT-...,
48-0-..., 44TE-...
(page 40ff)
Modular system for self-assembly
and adjustment of all established
laser diodes. Optional thermo-
electric cooling. Microbench
compatible. Suitable for fiber
coupling or for integration of
anamorphic optics or a Faraday
Isolator.
Modular system without any
electronics for laser diodes with a
Ø  9 mm casing. Good thermal
dissipation. Expandable using
micro focus and micro line optics
series 13... Suitable for fiber
coupling. Customized features
available on request.
Modular system without any
electronics for laser diodes with a
Ø  9 mm casing. Easy adjustment
of the laser diode and optics.
Expandable using micro focus
and micro line optics series 13...
Suitable for fiber coupling and for
laser diodes with P
out
<120 mW.
Modular system without any
electronics for laser diodes with a
Ø  9 mm casing. Solderless
contacts for the laser diode.
Expandable using micro focus
and micro line optics series 5...
21C-... / 21P-...
20C-... / 20P-...
...
24PX-...
Modular Laser Diode Collimation Systems
22P-...
Singlemode
Fiber Cable PMC-...
Fiber
Optics
Faraday Isolator FI-5...
Mounting and
Microbench plates
Laser safety glasses
Line and Micro
Focus Optics 13...
PM:
PANDA
PM: OVAL-
INNER CLAD
PM:
BOW-TIE
Anamorphic beam
shaping optics 5AN...
Collimation Lens
Line and Micro
Focus Optics 5...
Adapter
LaserLinesContent_DE.indd • Page 6
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

info@SuKHamburg.de

www.SuKHamburg.com
6
2012 E
Collimator Type
Row
No.
Collimator
Beam
diameter [mm] (p)
Beam
diameter [mm] (s)
Divergence [mrad](p)
Divergence [mrad](s)
Casing
Ø [mm]
Electronics type
Supply Voltage
Max mod.
Frequency (analog)
Max mod.
Frequency (TTL)
Customer Mounting /
Alignment
Attachment of beam
shaping optics
Laser beam focussed
TE-Cooling in Case
for Diodes with integ-
rated TE-Cooler
Page
Collimators
with integra-
ted electronics
20
25CM-...
2.2-6.9 0.9-2.4 0.06-18 0.13-0.44 12
S
B
5 V
12 V/9 V
100 kHz
-
1 MHz
200 Hz
x x 23
21
55CM-...
2.0-8.6 1.1-4 0.03-0.27 0.06-0.50 25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
x x 24
22
55CR-...
2.0-8.6 1.1-4 0.03-0.27 0.06-0.50 25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
x x 24
23
90CM-...
3-9 9-29 0.01-0.03 - 25-45 C 5 V 100 kHz 100 kHz x x 25
24
40-...
Unit - 11-24 V 10 Hz 250 kHz x x x x 26
Compact mo-
dular system
without elect-
ronics
25
20C-.../20P-...
1.2-3.3 3.4-5 0.13-0.36 0.09-0.12 12 -
depends on the chosen laser diode
depends on the laser drive
x x x 33
26
21C-... 21P-...
1.2-3.3 3.4-5 0.13-0.36 0.09-0.12 12 - x x 33
27
22P-...
1.2-3.3 3.4-5 0.13-0.36 0.09-0.12 11 - x x 34
28
24PX-...
0.93-1.3 2.6-3.9 0.32-0.46 0.11-0.16 12 - x x 34
29
50BM
1.2-17 2.5-17 0.03-0.36 0.03-0.12 25 - x x x 35
30
55BC
1.2-17 2.5-17 0.03-0.36 0.03-0.12 25 - x x x 38
Modular
system for all
laser diodes
(with and wit-
hout TE Coo-
ling)
31
48TE-SOT...
1.2-17 2.5-17 0.03-0.36 0.03-0.12 Unit - x x x x x 40
32
48-0-SOT...
1.2-17 2.5-17 0.03-0.36 0.03-0.12 Unit - x x x x 41
33
48-0-TOW2-...
1.2-17 2.5-17 0.03-0.36 0.03-0.12 Unit - x x x x 41
34
48-0-TO3-...
1.2-17 2.5-17 0.03-0.36 0.03-0.12 Unit - x x x x 41
35
48-0-TO5-...
1.2-17 2.5-17 0.03-0.36 0.03-0.12 Unit - x x x x 41
36
44TE-TO5-...
1.2-17 2.5-17 0.03-0.36 0.03-0.12 Unit - x x x x x 41
37
44TE-2...
1.2-17 2.5-17 0.03-0.36 0.03-0.12 Unit - x x x x x 41
Laser Diode Collimators
Shape
Row
No.
Line
Generator
Laser Diode Source
Fan angle [°]
Line length
min./max. [mm]
Min. line width
[mm]
Shape of
laser spot
Min. spot
diameter [mm]
Min. working dis-
tance [mm]
Depth of focus
Laser
power
Beam profile
Casing
Ø [mm]
Electronics type
Supply Voltage
Max mod.
Frequency (analog)
Max mod.
Frequency (TTL)
Page
Laser Line
1
13LR-...
55CM
12 - 40 26 / 1400 0.04 - - 120 + +++
X1
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
11
2
13LRM-...
55CM
12 - 40 26 / 1400 0.08 - - 111 +++ +
X1
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
11
3
5L...
25CM
8 - 84 6.6 / 1800 0.026 - - 42 + ++
X2
12
S
B
5 V
12 V/9 V
100 kHz
-
1 MHz
200 Hz
12
4
5L...M-...
25CM
8 - 84 21.8 / 565 0.084 - - 77 +++ +
X2
12
S
B
5 V
12 V/9V
100 kHz
-
1 MHz
200 Hz
12
5
5L...
55CM
8 - 84 6.6 / 1800 0.026 - - 42 + ++
X2
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
13
6
5L...M
55CM
8 - 84 21.8 / 565 0.084 - - 77 +++ +
X2
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
13
7
13LN-...
90CM 0-17 14 / 300 0.008 - - 93 + +++
X1
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
14
8
13LNM-...
90CM 0-17 14 /300 0.014 - - 93 +++ +
X1
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
14
Semi-
Telecentric
Laser Line
9
13LT-...
90CM
0 15 0.012 - - 160 + ++
X1
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
15
10
13LTM-...
90CM
0 15 0.04 - - 153 +++ +
X1
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
15
11
5LT-...
25CM
0 4.8 or 2.4 0.011 - - 45 + +++
X2
12
S
B
5 V
12V/9V
100 kHz
-
1 MHz
200 Hz
16
12
5LTM-...
25CM
0 4.8 or 2.4 0.02 - - 39 +++ +
X2
12
S
B
5 V
12V/9V
100 kHz
-
1 MHz
200 Hz
16
13
5LT...
55CM
0 4.8 or 2.4 0.011 - - 45 + +++
X2
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
17
14
5LTM-...
55CM
0 4.8 or 2.4 0.02 - - 39 +++ +
X2
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
17
Laser Spot
15
13MC-...
95CM
- - -
0.004 54 + +++
X5
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
18
16
13MMC-...
95CM
- - -
0.006 54 +++ + 25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
18
16
5MC-...
29CM
- - -
0.002 3 + ++
X5
12
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
19
17
13M-...
55CM
- - -
0.008 x 0.020 54 + +++
X6
25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
20
18
13MM-...
55CM
- - -
0.019 54 +++ + 25
P
C
5 V
10 Hz
100 kHz
250 kHz
100 kHz
20
18
5M-...
25CM
- - -
0.001 x 0.002 3 + ++
X6
12
S
B
5 V
12V/9V
100 kHz
-
1 MHz
200 Hz
21
19
5MM-...
25CM
- - -
0.025 16.5 +++ + 12
S
B
5 V
12V/9V
100 kHz
-
1 MHz
200 Hz
21
Laser Line, Micro Focus, Macro Focus and Laser Pattern Generators
LaserLinesBasics_DE.indd • Page 7
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

info@SuKHamburg.de

www.SuKHamburg.com
7
2012 E
2
The emitted spectrum is influenced by diode temperature and diode
current, as well as the geometry of the laser cavity. The front face
and the end face serve as a Fabry-Perot cavity allowing multiple
longitudinal modes. When operated just over the threshold, the diodes
have a wavelength spectrum with equidistant peaks (longitudinally
multimode). On increasing the diode current (to produce a higher
power output), one of the longitudinal modes is usually favored and the
diode emits in (longitudinally) singlemode. However, the gain profile
and the refractive index of the material are temperature dependent
and, so, other longitudinal modes can be amplified and the output
wavelength changes rapidly by a few nm, resulting in mode hopping.
For non-stabilized singlemode diodes, mode hopping occurs
stochastically and the emitted wavelength and output power can
change erratically by as much as 3%. For a temperature range of
20–30°C, the center wavelength can drift by 2.5–3 nm (GaAs). Since
changing the diode current changes the diode temperature, the
current/power output dependence of the laser diode is only nominal.
When the laser power is increased from the threshold up to the
nominal power then the wavelength increases by 2–4 nm.
Laser Diodes are semiconductor lasers and come in many different
shapes and sizes with laser powers ranging from a few mW to
hundreds of watts. The emitted wavelength depends mainly on the
semiconductor material of the laser diode cavity and laser diodes are
Laser Diodes
Physics Fundamentals: Laser Diodes and Collimation
Wavelength p (nm)
Optical Power Output
Dependence of Wavelength
830
828
826
Po = 10mW
Po = 3mW
Po = 40mW
836
832
828
Wavelength vs. Temperature
Po = 30mW
Case temperature TC (C°)
nm
20
30 40 50
The emitted wavelength can be kept constant in
a number of ways. External temperature control
is possible using integrated or external Peltier
elements and temperature sensors (see 48TE
SOT-...). Most laser diodes also have an integrated
monitor photodiode providing a feedback for the
control of the laser power.
The use of DFB (distributed feedback) or DBR
diodes (distributed Bragg reflector) with their
spectrally very narrow lines can be advantageous.
With the help of a grid structure, only one
longitudinal Fabry-Perot mode is amplified (stable
singlemode) and mode hopping is suppressed.
VCSEL diodes use DBR structures to produce
very narrow lines. The temperature dependence
remains, however, and a constant wavelength can
only be provided by using an integrated or external
temperature control system with integrated
monitoring photodiode.
The microscopic cross-section of the laser diode active area of
1 x 3 μm results in emitted radiation that is divergent. Most laser
diodes have a divergent
radiation cone of elliptical
cross-section and an appro-
ximately Gaussian intensity
distribution. The ellipticity can
be overcome with the help of
anamorphic optics.
Some diodes (e.g. VCSEL
or Circular Laser) produce a
circular beam profile.
The polarization of the emitted
radiation is linear and is parallel
to the active area of the diode.
The degree of polarization
varies with the diode current
and is lowest at the threshold.
The non-uniform gain profile within
the active layer of the laser diode
means that some laser diodes show
astigmatism. Thus, the laser radiation
emitted parallel and perpendicular to
the active layer does not emerge from
one point at the cavity end, but appears
to be emerging from two different
positions. The distance between these
is called the astigmatic difference As
and is in the order of 3–40 μm.
Astigmatism can be corrected by using
anamorphic optics (5AN-...).
The particular application determines
whether a long coherence L
c
(here given for a
Gaussian spectrum) or a short coherence is
desirable. Non-stabilized singlemode lasers
with stochastic changes of the wavelength
also exhibit stochastic changes in coherence
behavior.
Superluminiscent diodes use incoherent
spontaneous emission to provide short coherence. For
interferometry or spectroscopy, a long (or sufficient) coherence is
essential, a feature of DFB, DBR VCSEL diodes with integrated or
external thermo-electric cooling (TEC).
Laser diodes are very sensitive especially
when exposed to an electrostatic discharge.
Peaks in the current or voltage can damage
a diode severely, making especially stable
power sources a necessity. Also, it is very
important to operate the diode below
its maximum current, since lower diode
temperatures and power outputs increase the
life expectancy of the diode.
Faraday Isolators (48FI-5-...) can effectively
prevent back-reflection into the diode

1
.
Back-reflections can cause mode hopping

2

and reduce the stability of the diode
wavelength as well as the power output
that, in turn, results in faster degradation
of performance and disturbance of the
polarization.
As
1
L
c
FWHM
=
Δ
λ
λ


FWHM
Non-stabilized
singlemode diode
Narrow tunable
DFB spectrum
available to cover the full visible spectrum range from blue to red and
beyond, even emitting in the infrared. The laser diodes distributed by
￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿cover the whole wavelength range from 370 nm to
2300 nm.
Temperature and Power Dependence
Wavelength Constancy
Divergence and Polarization
Astigmatism
Coherence
Lifetime and Low Noise Operation
Faraday isolator prevents
back-reflection and diode
spectrum is undisturbed
Mode hopping from
back-reflection
destabilizing the diode
1/e²
FWHM

 FWHM





FWHM
Wavelength p (nm)
Optical Power Output
Dependence of Wavelength
830
828
826
Po = 10mW
Po = 3mW
Po = 40mW
836
832
828
Wavelength vs. Temperature
Po = 30mW
Case temperature TC (C°)
nm
20
30 40 50
LaserLinesBasics_DE.indd • Page 8
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

info@SuKHamburg.de

www.SuKHamburg.com
8
2012 E
The differing definitions account for the
factor 1.7 in the equations above.
Even a collimated beam has a non-
vanishing divergence, the beam
diameter varies (for large distances)
with the distance  from the laser diode
collimator. The resulting beam
divergences of the collimated beam


and

depend on the beam diameter
at the collimator Ø


or Ø

respectively
and on the wavelength  of the emitted
radiation.
For an ideal Gaussian beam (M
2
= 1):
Laser Collimation
The beam can be characterized by the divergence 


x 

measured
perpendicular and parallel to the active surface area at the 1/e²-level
(=13.5%).
Beam charcteristics can also be
described at the 50% intensity
level and are then defined by the
divergence 

FWHM
x 
 FWHM

(FWHM:full width at half
maximum).
For laser diodes, the parameters


FWHM
x 
 FWHM
are usually
specified and for a collimated
beam, a description at the 1/e²-
le vel is more suitable.
Collimation optics transform a
divergent beam with the
divergence 


x 

into a
collimated beam, retaining both
its Gaussian intensity distribution and elliptical beam profile with
diameters Ø


x Ø

.The beam diameter Ø


at the collimator is also
given at the 1/e²-level and is defined by the focal length  of the
collimating lens and the divergence 

FWHM
of the laser diode.
∅ = ⋅ ⋅ ⋅ ⋅






2
1
2
1 7 sin.θ
FWHM
∅ = ⋅ ⋅ ⋅ ⋅






⊥ ⊥
2
1
2
1 7 sin.θ
FWHM
ϑ
λ
π


=

⋅ ∅
/
/
2
Collimating Lenses
Collimating lenses by ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿ are manufactured from high
quality glass. Beam collimation and beam shape are up to 30x more
stable compared to plastic lenses showing variation in refractive index
and shape caused by temperature changes.
Bi-asphere lenses used for collimating monochromatic radiation show
the same correction and imaging quality compared to microscope
lenses with three and four elements. Caused by their specific manuf-
acturing process, these lenses have micro structures on their surfaces,
which also appear in the collimated beam, but not in a focussed spot.
Triplet lenses are three lens systems with spherical elements and high
surface qualtity. The lenses are charcterized by a very good spherical
correction and a high numerical aperture.
For wavelengths in the range 370–2300 nm the lenses are provieded
with anti-reflex coatings of a few hundred nm bandwidth, respectively.
focal length of collimating lens
Ø


= beam diameter


 FWHM
= laser diode beam divergence
at the 50% level



beam divergence of the collimated beam
Ø


= beam diameter
 = wavelength
Component
Type of
diode
Case type
Integra-
ted TEC/
NTC
Description
Wavelengths
Emission
bandwidth
Coherence
Beam and
spot profile
390-515 633-700 700-1100
1100-
2300

Fabry
Perot
Ø9
Ø5.6
without
without
Fabry-Perot laser diodes have
a good price-performance ratio
because they are one of the com-
monest types of laser diode and
they have a simple edge-emitting
structure.
x x x narrow varying elliptical

DFB/
DBR
TO3



TO5
with and
without
with and
without
Distributed feedback (DFB) laser
diodes have an integrated grating
within the active medium while the
grating structure for DBR diodes
is outside of the active area. The
emission bandwidth is narrow since
the emission wavelength can be tu-
ned by modifying either the applied
current or the diode temperature.
x x very
narrow
long elliptical

Super-
lum
Ø9
TOW 2
without
with
Superluminescent diodes are
characterized by spontaneous emis-
sion, producing a larger emission
bandwidth with lower coherence
length.
x x broad short elliptical

VCSEL TO46 with and
without
Vertical cavity surface-emitting laser
diodes are inexpensive to make.
The beam profile is circular and the
emission bandwidth narrow.
x x x very
narrow
long circular
Circular
Laser
Ø9
Ø5.6
without
without
Circular Laser diodes have
integrated internal beam-correcting
(anamorphic) optics that produce a
circular beam profile
x x narrow varying circular
Overview of Laser Diodes
1/e²
FWHM

 FWHM





FWHM
Ø


Ø

1

Focusing of the collimating lens with eccentric key
2

Locking of the collimating lens with screwdriver
3

Beam-shaping optics series 5x-...
4

Alignment and positive locking of beam-shaping optics
with screwdriver (order code 9D-12)
Laserlines20C_D.indd • Page 33
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

info@SuKHamburg.de

www.SuKHamburg.com
33
2012 E
Micro line
5LM-...
A laser diode collimator transforms the divergent radiation of a laser diode into a collimated (parallel)
beam. The beam profile is elliptical
X6
or circular
X5
and is defined by the beam characteristics of the
laser diode. The parallel and perpendicular beam dimensions can be calculated from the beam
divergence of the laser diode and the numerical aperture and focal length
of the collimating lens (page 8).
Features:
• Compact, modular system without any electronics
• Suitable for diodes of Ø 9 mm (Ø 5.6 mm with adapters, p. 34)
• Internal focussing mechanism
• Large variety of collimating lenses with focal lengths ￿￿ 4–11 mm
• The collimating lenses are manufactured from high quality glass – the
collimation and beam shape are 30 times more stable compared with
plastic lenses, which show variation in refractive index and shape with
changes in temperature.
• Large variety of laser diodes (page 50)
• Diode galvanically isolated (type C), or diode potential on casing (type P)
• Option: cable plug system
• Frontal slot for fitting micro focus and micro line optics
Please choose the laser diodes according to Table 1 on page 50 and collimating lenses according to Table 1 on page 34.
Focus adjustments with the micro focus or laser line systems are performed by adjusting the collimating lens.
Laser Diode Collimators
Compact modular system without any electronics
Attachable
Beam-shaping optics
Beam-shaping optics trans-
form the collimated beam
into micro spots or laser
lines.
For details see pages 11-21.
Line optics
5LT-...
Config. 1
Line optics
5LT-...
Config. 2
Polarizer
10.000 : 1
5PF-...
Macro focus
5MM-...
20-..., 21-...
Micro focus
5M-...
Apertures
5H-...
Micro
Line optics
5LP-...
Laser diodes 390–1080 nm
Case Ø 5.6 mm, Ø 9 mm
1080nm390 nm
X5
X6
Applications
Particle measurement
Scratch detector
Gene

tech
e.g. for AFM Microscopes Genetic Engineering
Laser Diode Collimator 20...
Order Code
20 C - A4 - 01 - 408 - X03 - 1
Laser diode mounting
C = galvanically isolated
P = diode potential on casing
Collimating lens and
AR-Coating (Table 1, page 34)
Wavelength and
LD-Code (page 51)
Modular system for the customer assembly and alignment of laser diodes
Option:
Cable plug system
20CS/20PS
… for solderless
contact of laser
diode pins (p. 34)
1

x/y-adjustment of laser diode
using screwdriver 9D-12
2

internal focussing mechanism
using eccentric key 60EX-4
3

locking of the focus setting
using screwdriver 9D-12
4

positive locking of beam-
shaping optics (9D-12)
5

threaded ring
6

mounting key for LD (50LD-C
or 50LD9.0, p. 34)
Laser diode
Dimensions
5
6
2
4
1
3
B
C
Laser Diode Collimator 20...
A


with micro focus optics
B

and
cable plug system
C

Cable options:
0 = w/o plug system 20CS/20PS
1 = with shielded cable plug system
20CS/20PS, 1.5 m
4 = cable as in 1, with 4-pin connec-
tor (Lemo) for laser diode power
supply SK 9735C/SK9735C2
5 = cable customer-specific
Components and tools on page 34.
A
• Collimating lenses with focal lengths ￿￿ 4–11 mm (details on page 34)
• Suitable for diodes of Ø 9 mm (Ø 5.6 mm with adapter, p. 34)
• With internal focussing mechanism
• Collimator casing permits lateral x/y-adjustment of laser diode using screw-
driver 9D-12
• Frontal slot for fitting micro focus and micro line optics
• Option: cable plug system 20CS/20PS for solderless contact of pins (p.34)
A
Option:
Cable plug system
21CS/21PS
… for solderless
contact of laser
diode pins
(p. 34)
Laser Diode Collimator 21...
Dimensions
2
1
1

internal focussing mechanism
using eccentric key 60EX-4
2

locking of the focus settingu-
sing screwdriver 9D-12
3

positive locking of beam-
shaping optics (9D-12)
3
Laser Diode Collimator 21...
A


with attachable beam shaping op-
tics
B

and cable plug system
C

B
C
A
Order Code
Laser diode mounting
C = galvanically isolated
P = diode potential on casing
Collimating lens and
AR-Coating (Table 1, page 34)
Wavelength and
LD-Code (page 51)
Cable options:
0 = w/o plug system 21CS/21PS
1 = with shielded cable plug system
21CS/21PS, 1.5 m
4 = cable as in 1, with 4-pin connec-
tor (Lemo) for laser diode power
supply SK 9735C/SK9735C2
5 = cable customer-specific
21 C - A8 - 07 - 660 - M01 - 0
• Not suited for costumer mounting and alignment
• Collimating lenses with focal lengths ￿￿ 4–11 mm (details on page 34)
• Suitable for diodes of Ø 9 mm (Ø 5.6 mm with adapter, p. 34)
• With internal focussing mechanism
• Frontal slot for fitting micro focus and micro line optics
• Option: cable plug system 21CS/21PS for solderless contact of pins (p. 34)
Mounted by ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿
A
Components and tools on page 34.
Fiber coupling
optics
5LWL-
SMA-...
2
4
1
3D Contour Measurement
Laserlines20C_D.indd • Page 34
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

info@SuKHamburg.de

www.SuKHamburg.com
34
2012 E
Laser Diode Collimators
Compact modular system without electronics
Components and Tools
Table 1
Beam parameters
Collimating Lens
row
curr. no 1 2 3 4 5 6 7
Collimation lens
20CL
1
Lens type
1)
A4
**
A4.5 T5 A6.2 A7.5 A8 A11
2
Focal length

f'
4 4.5 5 6.2 7.5 8 11
3
Numerical aperture NA
0.6 0.55 0.5 0.4 0.3 0.3 0.3
4
Clear aperture [mm]
4.8 4.95 5 5 6.5 4.8 5
5
Max. active area [mm]
0.05 0.18 0.14 0.2 0.1 0.1 0.1
6
Lens for UHV application
x x x x x x
Spectral range Code no. of AR coating
7 350 - 460 nm 52 52 52 52
8 400 - 600 nm 01 01 01 01 01 01
9 600 - 1050 nm 02 02 02 02 02 02
10 1050 - 1550 nm 03 03 03 03 03 03
11 1300 - 1750 nm 45 45 45 45 45
12 650 - 1150 nm 07 07
13 390 - 670 nm 33
14 600 - 1020 nm 05 05
15 630 - 980 nm 10
16 830 - 1550 nm 25
17 1550 - 1750 nm 22 22 22 22
18 1750 - 2300 nm 09 09 09 09 09 09
20 980 - 1550 nm 08
21 1750-3000 nm 64 64
*
Beam parameters for the collimated laser beam are calculated using the
formulas 1-3 on page 8. Two specific examples are shown below:
Beam parameter for the collimated laser beam using a 670 nm laser diode
with active area 0.1 x 3 μm and beam divergence 10°x 30° (FWHM), beam-Ø
1/e² (13.5%), # beam cross-section restricted by lens aperture
18
beam-Ø || [mm]
1.2 1.3 1.5 1.8 2.2 2.4 3.3
19
beam-Ø
[mm]
3.4 3.9 4.3#5.0#6.5#4.8#5
20
divergence || [mrad]
0.36 0.32 0.29 0.23 0.19 0.18 0.13
21
divergence
[mrad]
0.12 0.11 0.1 0.09 0.07 0.09 0.09
Beam parameter for the collimated laser beam using a 635 nm CircuLaser™
diode with beam divergence 8°x 8° (FWHM)
22
beam-Ø 1/e² (13.5%) [mm] 0.9 1.1 1.2 1.5 1.8 1.9 2.6
23
divergence [mrad]
0.43 0.38 0.34 0.28 0.24 0.21 0.16
￿
￿
Ø
￿￿
￿
￿
Ø
||
Ø


Collimating lenses
for Laser Diode Collimators 20..., 21...
Laser diodes of Ø 5.6 mm size can be inserted into the slot for laser diodes of
Ø 9 mm size without altering the active area nor its position: the laser diode
beam axis and the position of the emitter are unchanged.
Adapter
Order Code
50AL-5.6
2 parts:
A
outer casing Ø 9 mm

B
Retaining ring for laser diode
A
B
C
D
Adapters for Laser Diodes
Mounting key

Order Code

50LD-C
for laser diode mounting
in collimators 20C-... 21C-...
Eccentric key

Order Code

60EX-4
for lens focusing
Mounting key
Order Code

50LD9.0
for laser diode mounting
in collimators 20P-... 21P-...
Adjustment screws
Order Code

20AS-01 (set = 3 pcs.)
for laser diode adjustment in collima-
tor 20C-...
Screwdriver

Order Code

9D-12 Ø 1.2 mm
for lens locking and
beam-shaping optics
Order Code
• For solderless contact with the laser diode pins
• For collimators 20..., and 21...
• 4-pin plug connector for OEM or standard Power Supply from ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿
Pin layout corresponding with
the connector type of the
chosen laser diode (3 for Po-
wer Supply SK9735C2 and
laser diode pin layout 1, 2, 3)
20 CS - 1 - 3
Cable Plug System for:
20CS= Collimator 20C
20PS= Colllimator 20P
21CS= Collimator 21C
21PS= Collimator 21P
Connection Options:
1= 1.5m shielded cable
(Type 3x AWG 26C UL sw, 0,14mm
2
)
4= as for 1 with 4-pin connector for
Power Supply from ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿
(Connector type LEMO= FGG.0B.304)
5 = customer-specified configuration
Cable Plug
System 20CS...
Collimation lens
Lens type, see Table 1, col. 1 AR-coating, see Table 1, row 7-21
1)
A = aspheric lens
T = triplet
*
) IR chalcogenide lens
**
) Lens no. 1 (A4-01)
Bi-asphere f=4 mm, NA 0.6.:
optimized for the collimation of
405 nm laser diodes.
1
3
2
Cable Plug
System 21CS...
• Not suited for customer moun-
ting/alignment
• x/y-adjustment of laser diode
with special tool
• With internal focussing mecha-
nism
• Frontal slot for fitting micro fo-
cus and micro line optics
Laser Diode Collimator 22P-…
Laser Diode Collimator 24PX-…
Modular system for customer mounting and alignment of laser diodes
Special design for use in ECL
Laser diode collimator 24PX…
Lens A3.1-... NA 0.68
A4-01 NA 0.6 (370–600 nm)
A4.5-... NA 0.55
If not specified, AR coatings are
available in the range 370–2300
nm each covering several 100 nm
bandwidth (see table 1)
Dimensions
Special Configurations and Customer Solutions
Special Configuration of Laser Diode Collimator 21...
Dimensions
Table 2: Overview: Laser Diode Collimators 20..., 21..., 22P-... and 24PX-...
Compact modular system without electronics
Casing Ø [mm]
Focal Length
[mm]
LD Customer
Mounting/Alignment
Galv. isolation of la-
ser diode
Cable Plug
System
Flange Focussable
Attachable beam
shaping opics
Laser Diode
Collimator
12 4-11 x/x x/- 20CS/20PS x/x x x
20C-.../20P-...
12 4-11 -/- x/- 21CS/21PS - x x
21C-.../ 2P-...
11 4-11 - - 21PS - x x
22P-...
12 3.1-4.5 x - 20PS x x
24PX-...
The collimating lenses are manufactured from high quality glass – the collimation
and beam shape are 30 times more stable compared with plastic lenses, which
show variation in refractive index and shape with changes in temperature.
20 C -
A4 - 01
- 408 - X03 - 1
Please choose your laser diode according to Table 1 on page 50 of the catalog.
Other diodes are available on request.
The laser diode collimators of series 20... and 21... can also be supplied with
customer-owned laser diodes. Please contact ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿ if these are
not part of our product portfolio since specific features (e.g. point of emission,
etc.) about the laser diode need to be known beforehand in order to ensure
compability with the laser diode collimator.
C
Laser diode with casing Ø5.6 mm
D
Assembly key
Order Code
50LD5.6
Cable Plug System
Adapters for other diode casings on request.
Laser diode control and power supply
Order Code
9735C2
Order Code
9735C
For customized configurations of the laser diode collimator series 20..., 21...
please contact Schäfter+Kirchhoff.
Laser Diodes
Assembly Tools
19”-cassette, con





stant current or constant power,
modulation ana log or digital, ESD protected. Max mod.
frequency 100kHz (const. power), 50 kHz (const. current)
115/230 V AC
with integraded linear power supply
12 V AC
LD-Kolli_50BM_4seit_E_Prosp.indd • Page 35
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

info@SuKHamburg.de

www.SuKHamburg.com
35
2012 E
Laser Diode Universal Collimator 50BM-…
Fiber optics for a polarization-
maintaining singlemode fiber
Beam-shaping optics
Applications: 8 of 1000s
Ø 25 mm
Laser Telemetry: Collimated laser beam option:
Beam doubling gives redundancy in bad weather
Components and beam
parameters page 20
Collima
tion lens 50CL-
T12-10
Scratch Detector
Scratch Detection
Laser collimator with microfocus optics
AFM - Atomic Force Microscopy
Laser beam coupling into a singlemode fiber
Pilot Beam
Collimated laser beam with CircuLaser
TM
diode
A
b
a
A
LASER
for Adjustment
and Alignment
• Modular assembly system for the quick and precise mounting, adjustment and
collimation of laser diodes 390–2300 nm
• Suitable for diodes of Ø 9 mm (Ø 5.6 mm with adapter, p. 36) and P<120mW
• Collimation of beam-shaping optics for the generation of micro focus and laser
lines
• Laser beam coupling into polarization-maintaining singlemode fiber cable with
mode field diameters (MFD) 2 μm
The universal laser diode collimator system 50BM-... with attached beam-shaping and fiber optics from
￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿
￿
￿provides a range of laser system configurations with 1000s of combinations of laser beam-shaping optics for data transmission,
medical applications, industrial measurement and sensor techniques, analysis, biosensors and nanotechnology.
390 nm 2300 nm
Laser diodes 390–2300 nm
Casings Ø 5.6 mm, Ø 9 mm
Attachable optics for micro lines,
ellip tical or round micro spots 13-...
3D Object Mapping
by laser light sectioning
Laser Pattern Generator:
Contour
control with structured illumination
Laser diode control and
power supply 9735C2
1
2
3
8
5
6
7
4
Components and beam
parameters page 11
Components and beam parame-
ters see fiber optics catalogue
Components and beam
parameters page 25
Components and beam
parameters page 15
Particle Measurement: collimated laser
beam with semi-telecentrical line optics
Laser Diffraction or Laser Shadow Edge

flatbeam
®
collimator + CCD line camera
Components and beam
parameters page 22
Collimation
lenses 50CL-...
Collimator basic unit
50BM-...
Laser
diode
Cable connector system
50 CS-...
The collimated and focussed
laser beam is elliptical or
circular. The beam profile is
primarily determined by the
charac teristics of the emitted
laser radiation.
X1
Laser diode with beam
divergence of 10°x30°
X2
CircuLaser™ diode with
a beam divergence of 8°
X1
X2
A

Lens locking (indirect clamping)
B

Lens focussing by using the beam-shaping optics
C

X/y-centering of the laser diode
D

The beam-shaping optics or laser beam coupler are
locked into position using radially located grub screws
E
Attachable beam-shaping optics, here: 13M-...
A
D
C
A
System extension
components for attachment
B
E
LD-Kolli_50BM_4seit_E_Prosp.indd • Page 36
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

info@SuKHamburg.de

www.SuKHamburg.com
36
2012 E
Ø
25 mm
Mounting and adjustment
E
Laser diode mounting: fixed with threaded ring
Tool: Assembly key 50LD-C
F

Lens mounting and focussing
Tool: Focussing key 50FL-03
G

Lens focussing with attached beam-shaping
optics by left and right-hand turns of the
collimation lens. Tool: Allen hex key 50HD-15
H

Lens locking (indirect locking)
Tool: Allen hex key 50HD-15
I

X/y-adjustment of the laser diode
Tool: Allen hex key 50HD-15
J

Direct mounting and locking of beam-shaping optics
and laser beam coupler
Tool: Allen hex key 50HD-15
Universal Laser Diode Collimator 50BM-…
390nm 2300nm
Laser diodes 390 - 2300 nm
Case Ø 5.6 mm, Ø 9 mm
Collimation lenses transform the divergent laser radiation
into a parallel beam. The beam parameters are determined
by the focal length of the lens, its numerical aperture and the
divergence of the initially emitted radia tion. The original
beam characteristics of the laser diode (elliptical or circular
beam profile) are preserved.
• 19“ cassette 3HE / 10TE 133,3 x 50,8
x75 mm) for power supply 115/230 V
• Constant current or power operation
• Up to 250mA laser current output
• ESD protection
• Modulation digital and analog
5
Afocal cylinder lens optics
• Integrated astigmatism
correction
• Beam aperture: 5 mm
Microbench compatible
7
8
Laser beam coupler
60SMS-...
Singlemode fiber cable,
polarization-maintaining PMC-...
Fiber collimator
60FC-...
Microfocus optics
5M-...
1
2
3
4
1
3
4
6
1
2
3
Line optics 13LR25-S250
Laser line with constant
linewidth,
edge intensity >80%
Line optics 13 LT...,
semi telecentric laser line of
constant line length
Micro focus optics 13M...
f 60 – 325 mm
Iris aperture 13BL1-13
aperture Ø 1-13 mm
Polarizing filter 13PF-...
10.000 : 1
A

Collimation lenses 50CL-...

• Transforms the divergent diode laser radiation
into a parallel laser beam.
• Focal lengths from f’ 4 mm to f’ 60 mm
(Table 1, page 37).

AR coatings cover 350–2300 nm range, each
with bandwidths of 250 to 600 nm.
B

Collimator base 50BM


• Integrates laser diode, collimation lens and
cable connection system for the laser current
supply.
• Galvanically decoupled laser diode mounting
with ball bearing (no freeplay). Pre cise x/y-
adjustment of the laser diode, which is fastened
using a threaded ring.
• Lens socket with cylindrical fit and fine thread.
Internal lens focus sing of 50CL: left or right-hand
turn of the collimation lens provides a fine
adjustment of the collimation or focus of the laser
beam, even with attached beam-shaping optics.

Frontal cylinder mounting with locking screws
for the positive attachment of beam-shaping
optics. The beam-shaping optics provide laser
lines, micro focus optics or laser beam coupler
for singlemode fiber cables.
• The laser module can be integrated into the
microbench system using rods of Ø 6 mm with
30 mm pitch.
C

Laser diode 600–2300 nm (page 50)
• The laser diode socket accepts laser diodes
with Ø 9 mm casing and can also be used for
the correct placement and centering of diodes
with Ø 5.6 mm casing by using the Adapter
50AL-5.6.

D
Cable connection system 50CS-...
• Electrically isolated, solderless, spring contacts
for the laser diode. Cable housing with screw
cap and integrated cord grip.
Modular assembly system for the rapid
and precise mounting, adjustment and col-
limation of laser diodes
The universal laser diode collimator system
50BM-... has a robust size, and the ease of
as
sem bly and accessibility of adjustment and
locking for it to be used in a wide range of both
laboratory and industrial applications.
The 50BM-... system is ideal for the self-
assembly of laser diodes with 9 mm casings or
smaller using the appropriate adapter. The
galvanically decoupled ball bearing provides
precise adjustment for laser diodes with lower
power outputs of <120 mW and wavelengths
<600 nm.
The universal laser diode collimator system
55BC-... is the system of choice when higher
powers are required.
Universal LD Collimator 50 BM-…
Order Code
50BM- T12-10- 660- M01- 4
Dimensions
View „X“
X
Line and microfocus optics 13-...
Polarizer, iris aperture, and adapter
Anamorphic beam-shaping optics 5AN…
Brackets and accessories
Laser diode control and power supply 9735C2
Fiber optics for polarization-maintaining singlemode fibers
Components for system expansion
Application: Laser diodes with Ø 5.6 mm casing can
be used instead of laser diodes with Ø 9 mm casing
with retention of laser beam axis and positioning:

Laser beam axis and emitter position are
identical with those for Ø 9 mm diodes.
3
2
1
1 Assembly key
for laser diode mounting
Order Code 50LD-C
2 Assembly key
for collimation lenses 50CL-...
Order Code 50LF-03
3 Allen hex key WS Ø 1.5 mm
Order Code 50HD-15
Tools for mounting and adjustment
A
B
C
D
Adapter Order Code 50AL-5,6
2-parts:
A
casing, outer Ø 9 mm

B
Retaining ring for laser diode
C
Laser diode with casing Ø5.6 mm
D
Assembly key Order Code 50LD5.6
Adapter set for mounting laser diodes Ø 5.6 mm
1 = shielded connection cable
1.5 m (Typ 3x AWG 26 C UL)
Cable ends are bypassed
4 = Cable as for 1, with 4-pin connector
for laser diode and power supply SK 9735
5 = cable connection specified by customer
50 CS - 4
Order Code
Cable Connection system 50CS...
Bracket 50BS-25
Plate 48MC-MP-19,5
Rods 48MC-6-...
1
2
3
1
2
3
Laser diode base
Collimator lens see Table 1, p.37
Laser diode
Wavelength and code see page 50
Cable connection system
1 = with cable connection system 50CS-1...
4 = with cable connection system 50CS-4...
5 = cable connection specified by customer
2
4
Adapter 8AM-19,5
for beam-shaping optics 5...
Beam-shaping optics 5...
for laser beam Ø 5mm
Cable
connection
system
Collimation lenses
50CL-...
Collimator basic unit
50BM-...
Laser diode
and adapter
A
B
C
D
I
Cable connector
system 50CS-...
90CL-M60-10
50CL-T5-5
50CL-A4-01
G
H
Collimator with micro focus optics
Components for beam-shaping
Lens: 50CL-T12-10 (Table 1)
Micro focus: 13M-M60-10
J
50CL-
T12-10
13M-M60-10
F
E
LD-Kolli_50BM_4seit_E_Prosp.indd • Page 37
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

info@SuKHamburg.de

www.SuKHamburg.com
37
2012 E
Collimation Lenses 50CL…
Collimation lens
Best.-Code
AR coating, see Table 1
Lens type, see Table 1
50CL - T 12 - 05
1)
A = aspheric lens
M = laser monochromat
T = triplet
*)
Lens no. 3 and 10: special lenses, optics
design for laser diodes without
terminating windows
**)
Lens no. 1 (50CL-A4-01)
Bi-asphere f 4 mm, NA 0.6, optimized for
the collimation of 405 nm laser diodes.
Table 1
Beam parameters
Collimation Lens 50CL-...
row
curr. no
1
**
2 3 4 5 6 7 8 9
10
*
11 12
****
Collimation lens
50CL 90CL
1
Lens type
1)
A4 A4.5 T5 M5 A6.2 A7.5 A8 A8 T12 T12F M12 M60
2
Focal length

f'
4 4.5 5 5.1 6.2 7.5 8 8 12.5 12.5 12.1 60
3
Numerical aperture NA
0.6 0.55 0.5 0.16 0.4 0.3 0.3 0.5 0.54 0.54 0.22 0.14
4
Clear aperture [mm]
4.8 4.95 5 2.5 5 6.5 4.8 8 13.5 13.5 5.5 17
5
Max. active area [mm]
0.05 0.18 0.14 0.1 0.2 0.1 0.1 0.1 0.2 0.2 0.2 0.2
6
Lens for UHV application
x x x x x x x x
Spectral range Code no. of AR coating
7 350 - 460 nm 52 52 52
8 400 - 600 nm 01 01 01 01 01 01
9 600 - 1050 nm 02 02 02 02 02 02
10 1050 - 1550 nm 03 03 03 03 03 03
11 1300 - 1750 nm 45 45 45 45
12 650 - 1150 nm 07 07 07
13 390 - 670 nm 33 33 33 33
14 600 - 1020 nm 05 05
15 630 - 980 nm 10 10 10 10
16 830 - 1550 nm 25
17 1550 - 1750 nm 22 22 22 22 22
18 1750 - 2300 nm 09 09 09 09 09 09
20 980 - 1550 nm 08 08 08 08 08
21 1750-3000 nm 64 64
***
Beam parameter for the collimated laser beam using a 670 nm laser diode
with active area 0.1 x 3 μm and beam divergence 10°x 30° (FWHM), beam-Ø
1/e² (13.5%),
#
beam cross-section restricted by lens aperture
***
IR chalcogenide lens
****
Dimensions of fully assembled collimator differs
18
beam-Ø || [mm]
1.2 1.3 1.5 1.5 1.8 2.2 2.4 2.4 3.7 3.7 3.6
#
17
19
beam-Ø
[mm]
3.4 3.9 4.3
#
2.5
#
5.0
#
6.5
#
4.8
#
6.9 10.8 10.8
#
5.5
#
17
20
divergence || [mrad]
0.36 0.32 0.29 0.28 0.23 0.19 0.18 0.18 0.12 0.12 0.12 0.03
21
divergence
[mrad]
0.12 0.11 0.1 0.17 0.09 0.07 0.09 0.06 0.04 0.04 0.08 0.03
Beam parameter for the collimated laser beam using a 635 nm CircuLaser™
diode with beam divergence 8°x 8° (FWHM)
22
beam-Ø 1/e² (13.5%) [mm] 0.9 1.1 1.2 1.2 1.5 1.8 1.9 1.9 3.0 3.0 2.9 14.2
23
divergence [mrad]
0.43 0.38 0.34 0.33 0.28 0.24 0.21 0.21 0.14 0.14 0.14 0.03
￿
￿
Ø
￿￿
￿
￿
Ø
||
Ø


Laser Diodes
Please choose your laser diode according to table 1 on page 50 of
the catalog. Other diodes are available on request.
Bracket
Order Code
50BS-25
Microbench compatible (pitch:
30 mm, rods Ø 6 mm)
LD universal collimator system 50BM-...
Beam-shaping
optics
Collimation
lenses 50CL-...
Collimator base
50BM
Laser diode
Cable connec-
tion system 50CS
BS2
BS3
BS4
A4
A3
A2
A1
A
B
D
Collimator with micro focus optics
and beam parameters
application no. 5
Application: Laser diodes with Ø 5.6 mm
casing can be positioned correctly within
the retainers for laser diodes with a Ø 9 mm
casing using the adapter 50AL-5.6
The laser diode beam axis and the
position of the emitter do not change.
Adapter Order Code 50AL-5.6
2 parts:
A
casing, outer Ø 9 mm
B
Threaded ring
for laser diode
C
Laser diode with
Ø 5.6 mm housing
D
Assembly key Order Code 50LD9.0
A
B
C
D
Adapter for laser diodes Ø 5.6 mm
Laser diode universal collimator 50BM-... with beam-shaping optics

using the modular assembly system from ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿
Lens combinations for lines with constant line-
widths and homogeneous intensity distribution.
Emission angle: 25° (option: 12° or 40°)
Edge intensity: 80%
Working distance: 496 mm
Line length: 217 mm
Line width: 0.134 mm
Rayleigh range: 43 mm
Laser power: up to 40 mW
• Telecentric laser beam,
X4

beam and intensity distribution
• Beam divergence: typ. 0.03 mrad
• Beam aperture: 17 mm (option: 37 mm)
• Intensity distribution axis A-A:
flat top (rectangular)
• Edge intensity axis A-A > 80% (typ.)
• Intensity distribution axis B-B:
Gaussian beam distribution
Components for beam shaping
Lens:
A4

90CL-M60-10
f 60 NA0.13-AR630-980 mm
Laser diode: H01 – 5mW, 633 nm
Gaussian intensity distribution
X5
and
X6
beam cross-section:
X5
elliptical with laser diodes 
||
22° / 


8.5°
X6
circular, aspect ratio 1.2 : 1
Scratch Detection
Applications
Optoelectrical measurement system with
laser diode collimator and CCD line scan camera
Laser shadow edge or diffraction measuring system. Hi gh speed sensor
technology for diameter or edge detection, position irregularities or contractions.
CCD line scan camera.
b
a
A
Components for laser beam shaping
Lens:
A1

50CL-T12-10 f=12.5, NA=0.54, AR 630-980 nm
Line optics:
BS1

13LR25-S500 Emission angle 25°, focal length f 500
Laser diode: M26 – 40 mW, 660 nm
X5
X4
X6
X
1
Beam cross-section elliptical circular
Focus-Ø: 0.006/0.015 mm 0.004 mm
Working distance: 54 mm 54 mm
Rayleigh range: 0.090 mm 0.030 mm
Components for beam shaping:
Lens:
A1
50CL-T12-10
A4
50CL-M60-10
f 12.5 NA 0.54 f 60 NA 0.13
Micro focus optics:
BS2
13M-M60-10
BS2
13M-M60-10
f 60 NA 0.13 f 60 NA 0.13
Laser diode: M26–39mW, 660 nm B07–15 mW, 635 nm
Anamorphic cylinder lens optics
Beam width: 30 mm
Beam height: 1.3 mm (Option: 3 mm)
Beam divergence: 0.3 mrad
Edge intensity: 60 %
Laser power: 15 mW
Components for beam shaping
Lens:
A2
50CL-T5-05
Triplet f 5, NA 0.5
Anamorphic
optics:
BS3
50AN 6-30
Laser diode: N09 – 30 mW, 660 nm
Components for beam shaping
Lens:
A3
50CL-A8-07, Asphere f8 NA 0.3, AR 650-1150 nm
Adapter:
BS4
8AC19.5
Microline optics:
BS5
5LT75-1
Laser diode: H10 – 10 mW, 635 nm
Semi-telecentric laser line with constant line
length
Line length: 4.8 mm
Line width: 0.027 mm
Working distance: 74 mm
Rayleigh range: 1.7 mm
Edge intensity: 40%
Laser micro focus
Laser diode collimator flatbeam
®
Laser micro line
Telecentric laser band
Laser micro line
X3
X7
1
2
3
4
5
3D-Object mapping with
the light sectioning
method
Particle measurement
1
2
3
Counting and size
determination of
tracers
Detection
of sprayed
distributions
The beam height 
||
of the collimated laser beam
is in focus. The line length remains constant.
The collimated
and focussed
laser beam
is either
elliptical
X5
or circular
X6
.
The emitted beam profile is
determined by the beam
characteristics of the laser
diode.
Application
Mounting Bracket
BS1
BS5
BS
LD-Kolli_50BM_4seit_E_Prosp.indd • Page 38
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38
2012 E
Ø
25 mm
Universal Laser Diode Collimator 55BC-…
390nm 2300nm
Laser diodes 390 –2300 nm
Case Ø 5.6 mm, Ø 9 mm
E
Laser diode mounting: fixed by a threaded ring Tool: Assembly key 50LD-C
F

Lens mounting and focussing Tool: Focussing key 50FL-03
G

Lens focussing with attached beam-shaping optics
by a left or right-hand turn of the collimation lens Tool: Allen hex key 50HD-15
H

Lens locking (indirect locking) Tool: Allen hex key 50HD-15
I

x/y-adjustment of the laser diode Tool: Allen hex key 50HD-15
J

Direct mounting and locking of beam-shaping
optics and laser beam coupler Tool: Allen hex key 50HD-15
Mounting and Adjustment
3
2
1
1 Assembly key
for laser diode mounting

Order Code
50LD-C
2 Assembly key
for collimation lenses 50CL-...
Order Code
50LF-03
3 Allen hex key WS Ø 1.5 mm
Order Code
50HD-15
Tools for Mounting and Adjustment
Application: Laser diodes with Ø 5.6 mm housing
are inserted into the retainer for laser diodes with Ø
9 mm housing with the active area at the same po-
sition: Laser beam axis and position of the emitter
are identical to those for Ø 9 mm diodes.
A
B
C
D
Adapter
Order Code
50AL-5.6
2-parts:
A
housing, outer-Ø 9 mm

B
Retaining ring for laser diode
C

Laser diode with housing
Ø5.6 mm
D
Assembly key
Order Code
50LD9.0
Adapter for Mounting Laser Diodes Ø5.6mm
4
5
33.9
36.9
3
3
10
10
3
3
10
10
Ø25h8
Ø28f8
M2.5 (4x)
Einschraubtiefe 5
64.4
30.5
Ø19.5h8
6
ØM12x0.5
Dimensions
A

Collimation lenses 50CL-...

• Transforms the divergent diode laser radiation
into a parallel laser beam.
• Focal lengths from f’ 4 mm to f’ 60 mm
(Table 1, page 37).

AR coatings cover 390–2300 nm range, each
with bandwidths of 250 to 600 nm.
B

Collimator basic unit 55BC


• Integrates laser diode, collimation lens and
cable connection system for the laser current
supply.
• Galvanically decoupled laser diode mounting.
Pre cise x/y-adjustment of the laser diode, which
is fastened using a threaded ring.
• Lens socket with cylindrical fit and fine thread.
Internal lens focus sing: left or right-hand turn of
the collimation lens provides a fine adjustment
of the collimation or focus of the laser beam,
even with attached beam-shaping optics.

Frontal cylinder mounting with locking screws
for the positive attachment of beam-shaping
optics. The beam-shaping optics provide laser
lines, micro focus optics or laser beam coupler
for singlemode fiber cables.
• The laser module can be integrated into the
microbench system using rods of Ø 6 mm with
30 mm pitch.
C

Laser diode 390–2300 nm (page 50)
• The laser diode socket accepts laser diodes
with Ø 9 mm casing and can also be used for
the correct placement and centering of diodes
with Ø 5.6 mm casing by using the Adapter
50AL-5.6.

D
Cable connection system 20CS-...
• Electrically isolated, solderless, spring contacts
for the laser diode.
Collimation lenses transform the divergent laser radiation
into a parallel beam. The beam parameters are determined
by the focal length of the lens, its numerical aperture and the
divergence of the initially emitted radia tion. The original
beam characteristics of the laser diode (elliptical or circular
beam profile) are preserved.
Modular assembly system for the rapid
and precise mounting, adjustment and
collimation of laser diodes
The universal laser diode collimator
system 55BC-... has a robust size, and the
ease of as
sem bly and accessibility of
adjustment and locking for it to be used in
a wide range of both laboratory and industrial
applications.
The 55BC-... system is suited for laser
diodes with 9 mm casings or smaller using
the appropriate adapter. The laser diode is
mounted galvanically decoupled and can be
adjusted with high precision.
The 55BC-... has a good heat dissipation
and is thus suitable for diodes with higher
power output >120 mW and wavelengths
down to the UV.
Order Code
For solderless contact of the laser diode pins
Pin layout of the connector
type for the chosen laser
diode
(3 for Power Supply
SK735C2 and laser diode
pin layout 1, 2, 3)
20 CS - 1 - 3
Connection Options:
1 = 1.5 m shielded cable
(Type 3x AWG 26C UL sw, 0.14mm
2
)
4 = as for 1 with 4-pin connector for
the Power Supply ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿
(Connector type LEMO= FGG.0B.304)
5 = configuration specified by customer
20CS...
1
3
2
Cable Plug System
Universal LD Collimator 55 BC-…
55BC- T12-10- 660- M01- 4
Laser diode base
Collimator lens see Table 1, p.32
Laser diode
Wavelength and SK-code see last page
Cable connection system
1 = with cable connection system 20CS-1...
4 = with cable connection system 20CS-4...
5 = connection specified by customer
Order Code
• 19“ cassette 3HE / 10TE 133.3 x 50.8
x75 mm) for power supply 115/230 V
• Constant current or power operation
• Up to 250mA laser current output
• ESD protection
• Modulation digital and analog
Laser diode control /power supply 9735C2
Collimation lenses
50CL-...
Collimator basic unit
55BC-...
Laser diode
and adapter
A
B
C
E
I
Cable connection
system 50CS-...
90CL-M60-10
50CL-T5-5
50CL-A4-01
13M-M60-10
G
Collimator with micro focus optics
Components for laser beam shaping
Lens: 50CL-T12-10 (Table 1)
Micro focus: 13M-M60-10
J
50CL-
T12-10
H
F
D
48TE-11-2011_DE.indd • Page 39
Kieler Str. 212, 22525 Hamburg, Germany

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39
2012 E
Singlemode
Fiber Cable PMC-...
Fiber
Optics
Faraday Isolator FI-5...
Mounting and
Microbench plates
Laser safety glasses
Line and Micro
Focus Optics 5...
Line and Micro
Focus Optics 13...
Adapter
PM:
PANDA
PM: OVAL-
INNER CLAD
PM:
BOW-TIE
Ø5.6/9
Ø5.6/9
TOW2
TO3 TO5T05
T03
Laser Diode Collimators 48..., 44-...
Modular System for temperature-stabilized Laser Diodes
Anamorphic beam
shaping optics 5AN...
Collimation lens
Collimator Flange
44-TE-...
48... Compact System for Laser Diodes With and Without Integrated TE Cooler
Collimator basic unit without TE cooling
Collimator basic unit
with TE cooling
Collimator basic unit with TE cooling
The Laser Diode Collimators of type 48... and 44-... are modular systems from ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿ designed for
laser diodes of the type Ø9, Ø5.6, TOW2, TO3, TO5 and TO46.
The core laser diode systems can be supplied with Peltier elements or without integrated thermoelectric cooling.
They are compatible with the microbench system and can be extended according to need using fiber connectors with the option, for example,
of a Faraday Isolator to prevent to back-reflections of the laser beam.
These systems are provided for self-assembly but can be supplied preassembled and preadjusted according to customer requirements.
Laser Diode Collimator
48TE-SOT
Laser Diode Collimator
48TE-0-SOT
Laser Diode Collimator
48-0-T0W2
Laser Diode Collimator
48-0-T03
Laser Diode Collimator
48-0-TO5
Laser Diode Collimator
44-TE-TO5
Laser Diode Collimator
44-TE-2
48TE-11-2011_DE.indd • Page 40
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

info@SuKHamburg.de

www.SuKHamburg.com
40
2012 E

Laser Diode Collimators 48...

Laser Diode Collimator
48TE-SOT-...
Main specifications:

x/y-centering of the laser diode onto the optical axis with
adjustment tool 48AD
• Solderless spring-loaded connectors isolate the laser diode gal-
vanically from the collimator casing
• Integrated Peltier element and temperature sensor for thermo-
electric closed-loop control of the laser diode temperature
• Peltier element provides up to 2 W of heat transfer capacity
I
max.
= 1.5 A, U
max.
= 2.8 V
• Temperature sensor: thermistor (NTC 10 k)
• Separate connection cables for the power supply, the monitoring
of the laser diode and temperature control
• Modular fan 48L
A3
for increased thermal transfer efficiency
(The 12V DC/0.1A power supply is not designed for use with
vibration-sensitive applications)
• Microbench compatible (30 mm spacing)
• The components are adjusted and locked into place using radially
located grub screws
• An elastomere diaphragm
A1
encloses the laser diode, to prevent
laser light from exiting and dust contamination
48CFS
A1
A2
60CL
Application: Laser diodes of Ø 5.6 mm size can be inserted into the
retainer for laser diodes of Ø 9 mm size without altering the active
area nor its position: the laser diode beam axis and the position of
the emitter are unchanged.
Adapter
Order Code
50AL-5.6
2 parts
A
outer housing Ø 9 mm
B
Retaining ring for laser diode
C
Laser diode with housing Ø5.6 mm
D
Assembly key
Order Code
50LD5.6
A
B
C
D
A2
A2
B
Adjustment
with mounted
collimator
Adapters for Laser Diodes Ø 5.6 mm
A3
Laser Diode Unit 48TE-SOT
A
Adjustment fixture

Order Code
48AD
A2
For the optimum collimation of the laser beam
free from aberration (e.g. coma), it is necessary
to launch the emission center onto the optical
axis of the collimator optics.
With the tripartite x/y-centering fixture 48AD,
the mounting plate of the laser diode can be
adjusted laterally.
Lateral displacement is performed
using screws
1
and
2
, while
screw
3

provides the necessary
counteractive force.
1
2
3
1
2
3
x/y-Centering of the Laser Diode Basic Unit
with integrated
TE cooler
SOT
Ø9mm
Ø5,6 mm
C
Collimator
Objective 60CL
and 50CL
focussable
B
Collimator Flange
48CFS und 48CFL
Microbench system
Ø 19.5

Laser diodes
Ø5.6, Ø9,
TO5, TO3
and TOW2
A
Laser Diode Basic Unit
with or without integrated
TE cooling, x/y-centering
of diode, choice of diode
determines the size of
the basic unit
Universal modular system for self-assembly and adjustment based on the three functional elements:

A

B

C

A

Laser diode base 48TE-SOT-...
with integrated Peltier elements
and temperature sensor for
thermoelectric temperature
control
B

Collimator Flange
C
Collimating lens
3

Mounting bracket, microbench
compatible
4

Faraday Isolator
5

Anamorphic beam shaping
optics
6

Mechanical shutter or
attenuator
7

Laser beam coupler
for a singlemode
fiber
48CFL
50CL
3
5
4
6
7
Shaping
Optics 5...
Adapter
8AC-19.5
Shaping
Optics 13...
Options and Expansion
Modules
48TE-11-2011_DE.indd • Page 41
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

Fax: +49 40 85 39 97-79

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41
2012 E
Laser diode
with
integrated
TE Cooling
Laser Diode Basic Unit 48-0-...
without integral TE Cooling
For diodes in casing Ø5.6, Ø9, TO3, TOW2 and TO5 with
integral thermoelectric cooling
48CFS
60CL
Laser diode
Superlum
Case TOW2
mounted in
Laser diode base 48-0-TOW2
Laser diodes 370–2300 nm
Laser diodes with inte -
gra ted TE-Cooler:
Laser diode
Case TO3
mounted in
Laser diode base 48-0-TO3
48-0-TO3-...
48-0-TOW2-...
case TOW2
case TO3
Universal modular system for self-assembly and adjustment
based on the three functional elements:
A

B

C
case TO5
Laser diode
VCSEL
Case TO5
mounted in
Laser diode unit 48-0-TO5
case Ø9
Laser diode
Case Ø5.6,Ø9
mounted in
Laser diode unit 48-0-SOT
48-0-TO5-...
48-0-SOT-...
Main specifications:

x/y-centering of the laser diode onto the
optical axis with adjustment tool 48AD
• Solderless spring-loaded connectors
isolate the laser diode galvanically from
the collimator casing
• Separate connection cables for the
power supply, for data transfer and
monitoring of the laser diode and for
temperature control
• Temperature sensor: thermistor (NTC
10 k)
• Modular fan 48L
A3
for increased thermal
transfer efficiency (12V DC-0.1A power
supply is not designed for use with
vibration-sensitive applications)
• Microbench compatible (30 mm spacing)
• The components are adjusted and locked
into their final position using radially
located grub screws
• Microbench compatible
Laser Diode Base Unit 48-0-...
A
A3
Ordering of a Type 48...
Application: Laser diodes of Ø 5.6 mm size
can be inserted into the slot for a Ø 9 mm
laser diode without altering the active area
nor position: the laser diode beam axis and
the position of the emitter are unchanged.
Adapter
Order Code
50AL-5.6
2 parts:
A
outer casing Ø 9 mm
and
B
Retaining ring for laser diode
C
Laser diode with
casing Ø5.6 mm
D
Assembly key

Order Code
50LD5.6
A
B
C
Adapters for Laser Diodes Ø 5.6 mm
Adjustment fixture

Order Code
48AD
A2
Lateral displacement is performed using
screws
1
and
2
; screw
3

provides the necessary
counteractive force
1
2
3
x/y-Centering of the Laser Diode Base Unit
For the successful ordering of a Laser
Diode Collimator Type 48 ... please
select:
1. the laser diode (page 50)
2. the requisite laser diode base unit

C

(depends on diode module and TEC
option)
3. the collimator optics
A
(page 42)
according to wavelength choice and
size of the unit (50CL or 60CL)
4. the collimator flange
B
appropriate
to the collimation optics (page 42)
and then from the following options:
• fan 48L
• Beam-Shaping Optics, series 5 or 13
• consoles and mounting brackets
(page 31)
• anamorphic correction (page 43)
• Faraday Isolator (page 44)
• Fiber Optics (see Fiber Optics catalog)
• adjustment tools and equipment
All of these items require separate order
numbers to ensure completion of the
order successfully.
48CFL
50CL
Dimensions
Laser Diode Basic Unit 44TE-...
• Electrical isolation of the laser diode from the collimator casing using a spacer.
• Temperature sensor: thermistor (or alternative upon request).
• Separate electric cables for thermo-regulation, power and data.
• A solderless spring-loaded for the laser diode isolates it galvanically from the
diode casing.
• Peltier element with a 15 watt heat transfer capacity (I
max
+3.9 A, U
max
11.5 V).
• x/y-adjustment range of the laser diode by up to 0.5 mm
• Adjustable and focussable encasement of the collimator objective. A left or
right-hand turn of the collimator objective provides a fine-focussing and
colllimation of the laser beam, even with extraneous beam-shaping optics
attached.
• The beam-shaping optics and singlemode fiber connector have the requisite
cylindrical shape and V-groove for attachment to the collimator casing. The
optical attachments can be adjusted radially and are locked into place with the
radially located grub screws.
1
Collimator objective
2
Frontally attached
rectangular flange
with Ø 6 mm bore-
holes for attachment
of microbench
components
3
optional: 44L fan
module, 12 V DC
4
Collimator objective
adjustment tool
50LF-03
5
Bracket 44LM
1
2
3
4
5
48...
44TE-...
B
Collimator flange
48CFS / 48CFL
Microbench system
Ø 19.5
A

Collimator
Objective 60CL

focussable
C
Laser diode base unit
48-0-TO3-... 48-0-TO5-...

48-0-TOW2-... 48-0-SOT-...
x/y centering of the laser diode
48TE-11-2011_DE.indd • Page 42
Kieler Str. 212, 22525 Hamburg, Germany

Tel: +49 40 85 39 97-0

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42
2012 E
Table 1
Beam parameters
Collimation Lens 60CL-.../50CL-...
row
curr. no 1 2 3 4 5 6 7 8 9 10 11 12
Collimation lens
Collimator flange
60CL
48CFS
50CL
48CFL
60CL
48CFS
1
Lens type
A4
**
A4.5
T5
*
M5 A6.2 A7.5 A8 A8 T12
*
T12F M12 M60
2
Focal length

f'
4 4.5 5 5.1 6.2 7.5 8 8 12.5 12.5 12.1 60
3
Numerical aperture NA
0.6 0.55 0.5 0.16 0.4 0.3 0.3 0.5 0.54 0.54 0.22 0.14
4
Clear aperture [mm]
4.8 4.95 5 2.5 5 6.5 4.8 8 13.5 13.5 5.5 17
5
Max. active area [mm]
0.05 0.18 0.14 0.1 0.2 0.1 0.1 0.1 0.2 0.2 0.2 0.2
6
Lens for UHV application
x x x x x x x x
Spectral range
7 350 - 460 nm 52 52 52
8 400 - 600 nm 01 01 01 01 01 01
9 600 - 1050 nm 02 02 02 02 02 02
10 1050 - 1550 nm 03 03 03 03 03 03
11 1300 - 1750 nm 45 45 45
12 650 - 1150 nm 07 07 07
13 390 - 670 nm 33 33 33 33
14 600 - 1020 nm 05 05
15 630 - 980 nm 10 10 10 10 10
16 830 - 1550 nm 25
17 1550 - 1750 nm 22 22 22 22
18 1750 - 2300 nm 09 09 09 09 09
19 980 - 1550 nm 08 08 08 08 08
20 1750-3000 nm 64 64
***
46
Beam parameters for a collimated laser beam using a 670 nm laser diode
with active area 0.1 x 3 μm and beam divergence 10°x 30° (FWHM), beam-Ø
1/e² (13.5%)
# beam cross-section restricted by lens aperture
***
IR chalcogenide lens
21
beam-Ø || [mm]
1.2 1.3 1.5 1.5 1.8 2.2 2.4 2.4 3.7 3.7 3.6#17
22
beam-Ø
[mm]
3.4 3.9 4.3#2.5#5.0#6.5#4.8#6.9 10.8 10.8#5.5#17
23
divergence || [mrad]
0.36 0.32 0.29 0.28 0.23 0.19 0.18 0.18 0.12 0.12 0.12 0.03
24
divergence
[mrad]
0.12 0.11 0.1 0.17 0.09 0.07 0.09 0.06 0.04 0.04 0.08 0.03
Beam parameter for the collimated laser beam using a 635 nm CircuLaser™
diode with beam divergence 8°x 8° (FWHM)
25
beam-Ø 1/e² (13.5%) [mm] 0.9 1.1 1.2 1.2 1.5 1.8 1.9 1.9 3.0 3.0 2.9 14.2
26
divergence [mrad]
0.43 0.38 0.34 0.33 0.28 0.24 0.21 0.21 0.14 0.14 0.14 0.03
￿
￿
Ø
￿￿
￿
￿
Ø
||
Ø


B

Collimator flange 48CFS und 48FCL
for microbench and system mounting Ø 19.5 mm
Collimator Flange 48CFL
B2

• For lens type 50CL-...
C2
• Internal focussing of the objective: a left or right-handed turn of the collimator
objective provides a fine focussing and collimation of the laser beam, even in
the presence of attached extra optical components.
C
Collimator Objective 60CL and 50CL
Aperture 2.7 mm – 60 mm
Mounting Plate
for components with
Ø 19.5mm system
mount or with
Ø 25mm
Order Code

48MC-MP-19.5

Mechanical
Attenuator
with micrometer screw,
aperture Ø 3 mm
system mount
Ø 19.5 mm
Order Code

48AT-A
8
x-y Adjustment plate
for lateral adjustment,
translation 1mm
Order Code

48MB-19.5-SXY-1
Mechanical Shutter
aperture Ø 3 mm
system mount
Ø 19.5 mm
Order Code

48AT-S
• Locking mechanism for the lens

Connection possibility Ø 19.5 mm for mounting optical extras. The cylinder
mount has a V-groove for attachment of a collimator flange. Any extra optical
components can be accommodated and adjusted rotationally before their final
position is locked using the radially located grub screws.
• Microbench attachment (30 mm spacing) points are provided for the laser diode
basic system and other components such as the Faraday Isolator 48FI-5-... for
irradiation protection of the laser diode.
• Attachment points for 4 precision steel rods.
Collimator Flange 48CFS
B1

• For lens type 60CL-...
C1
• Internal focussing of the objective: collimation of the laser beam is performed
using an eccentric key, even with other attached optical components, which
remain nearly unaffected by the adjustment process so that no centering
misalignments occur.
C1
C2
B1
B2
48CFS 48CFL
60CL 50CL
Multicube 48MC-... for consoles and microbench
constructions
Components for system expansion

A
E
B
C
D
A

“multicube” component for incorporation of a
B

Polarized Beam Splitter
C

Laser Beam Splitter
D


Laser Beam Combiner
E

Retardation Optics
F
Photodiode
F
Extended Mounting Bracket
150 x 60 mm or 60 x 60 mm, system
mount Ø 19.5 mm
Order Code

48MB-19.5-150
Order Code

48MB-19.5-60
• 19’’ cassette 3HE / 16TE (129 x 81 x 169 mm)
for power supply 115/230 V
• Constant current or power operation
• Up to 2A laser output current
• ESD protection
• 16 W TECX bipolar up to 2A
• Ultrastable PI temperature control
Laser Diode and Temperature Control SK972235/ SK972236
1 Screwdriver
Order Code
48SD-00
2 Hex screwdriver SW Ø 1.5 mm

Order Code
50HD-15
3 Hex screwdriver SW Ø 2.5 mm
for adjustment fixture 48AD
Order Code
50HD-25
4 Eccentric key
for collimation lenses 60CL-...
Order Code
60EX-4
5 Assembly key
for collimation lenses 50CL-...
Order Code
50LF-03
Assembly and Adjustment Tools
2
1
4
3
5
Collimation Optics
AR-coationg see table 1
Optics type see table 1
50CL - T 5 - 05
A = Aspheric optics
M = Laser monochromat
T = Triplet
*)
Optics no. 3 and 9: specifically designed for
laser diodes
**)
Optics no. 1 (60CL-A4-01), Bi-aspheric f 4 mm,
optimized for collimation of 405 nm laser diodes
Line and Micro Focus
Optics 5...
Line and Micro Focus
Optics 13...
Adapter
Anamorphot_DE.indd • Page 43
Kieler Str. 212, 22525 Hamburg, Germany

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Fax: +49 40 85 39 97-79

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43
2012 E
Adapter
Order Code
19.5 AM25-L
Attachments
A
Laser diodes have large aperture angles vertically (s) and smaller aperture
angles in parallel (p) with the light-emitting layer. These virtual emission
sources of the s- and p-directions are manifest in the local displacement,
As, of the optical axes.
B
The collimating lens produces a collimated elliptical beam with a Gaussian
intensity profile

C
. The astigmatic difference, As, determines that the beam
is parallel in only one of the directions and is divergent in the other.
D

The anamorphic beam-shaping optics contain both positive and negative
cylinder lenses, attenuating the longer elliptical axis to that of the shorter
axis and correcting the astigmatism. To compensate for divergence induced
in the s-direction, the distance between the elements of the cylinder lens is
increased (astigmatism correction).
E

The output beam profile of the anamorphic beam-shaping optics is circular
and the beam is parallel (depending on the beam divergence of the laser
diode and on the anamorphic form factor). After astigmatism correction, the
wave fronts are planar. The in put aperture of a laser beam coupler (fiber
optics catalogue page 7) is matched to the smaller output beam diameter
(typically 1.3 mm).
F
The focussed laser spot of the coupling lens is not only circular but also has
plane wave fronts. Without astigmatism correction (e.g. when beam shaping
is performed using anamorphic prism optics), the focal area would remain
affected by the curved wave fronts of the elliptical beam.
A circular beam profile may be preferred over the elliptical profile
usually provided by laser diodes. Anamorphic optics act one-
dimensionally on the elliptical profile of the collimated beam and adjust
the larger beam diameter to the dimension of the smaller one,
producing a radially symmetric beam. The anamorphic beam-shaping
optics from ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿ are cylinder lens systems and can,
therefore, be used to correct the astigmatic difference As of the laser
diode through a refocussing of the optical system.
Coupling efficiencies to singlemode fibers of 80% or more are possible
with anamorphic beam-shaping optics, depending on the beam
characteristics of the laser diode.
• Radially symmetric output beam by attenuation of the longer
elliptical axis (beam-shaping factor 0.33 - 0.63)
• Maximum laser beam diameter of 5 mm
• Integrated astigmatism correction
• No problems of lateral beam shift or beam deviation
• Spectral range 390 - 2100 nm
• High fiber-coupling efficiency (over 80%)
• Full integration with "multicube" system, collimators and
adapters, through Ø 19.5 mm mounting
*
F
The anamorphic effect is described by the form factor F,
which indicates the relative diameter change of the parallel beam. The target
value is calculated from the ratio of the beam apertures Ø


and Ø

of the laser
diode. The beam apertures at 13.5% of the Gaussian beam profile are
calculated from the 50% values (FWHM) of the laser diode aperture angles 



and 

according to the formula: NA  = 1.7 sin (/2).
Anamorphic Beam-Shaping
Optics 5AN-...
Form Factor
The adapter 19.5AM25-L enables the laser beam coupler
60SMS-... to be positively and reproducibly locked into the be-
am-shaping optics.
A

Eccentric key 60EX-4
B

Hex screwdriver WS 1.5 mm 50HD-15
C
Screwdriver WS 1.2 mm 9D-12
B
A
C
Tools
1
Technical Data
Order Code
Dimensions
Form
factor
Wavelength
range [nm]
A
B C F

26.8 8 5.5 0.63 600 - 1020
5 AN-1.6-V-05
31.8 10 8.5 0.5 390 - 490
5 AN - 2- V-35
31.8 10 8.5 0.5 600 - 1020
5 AN - 2- V-05
31.8 10 8.5 0.5 980 - 1550
5 AN - 2- V-08
31.3 8 10 0.4 600 - 1020
5 AN-2.5-V-05
31.3 8 10 0.4 980 - 1550
5 AN-2.5-V-08
36.8 15 8.5 0.33 390 - 490
5 AN - 3- V-35
36.8 15 8.5 0.33 600 - 1020
5 AN - 3- V-05
36.8 15 8.5 0.33 980 - 1550
5 AN - 3- V-08
36.8 15 8.5 0.33 1500 - 2100
5 AN - 3- V-19
A

Anamorphic beam-shaping optics
B

Adapter 19.5 AM25-L
C

Laser beam coupler 60SMS-...
D

Laser beam source with elliptical beam profile
E

Singlemode fiber with FC connector
The optically active axis of the anamorphic beam-shaping optics is
orientated in parallel with the longer elliptical axis of the collimated laser
beam. The circular V-groove at the anamorphic optics input provides a
positive, rotatable and lockable connection with the laser diode
collimator
1
. When coupling into polarization-maintaining fibers, the
polarization axis of the laser beam must be aligned with one of the two
polarization axes of the fiber (usually the slow axis). The alignment of
the polarization axis is facilitated by the rotatable and lockable adapter
flange 19.5AM25-L on the output side of the anamorphic optics
4
. On
both the FC connector and the laser beam coupler, an index key not
only indicates the polarization axis but also engages in a groove to
provide a reproducible and positive locking of the desired orientation.
Coupling of singlemode fibers
Laser Beam Coupler
60SMS-...
A
Laser diode
B
Collimation Lens
50CL-... / 60CL-...
C
Beam cross-section:
elliptical
D
Anamorphic Beam-
Shaping Optics 5AN-...
Singlemode
Fiber Cable with
FC-APC Connector
E
Circular
beam profile
Elliptical
beam profile
C
Laser diode with
astigmatic
difference As*
A
Adjustment and
locking of the
polarization axis
4
Orientation and locking
of the anamorphic beam-
shaping optics with the
laser beam ellipse
1
Astigmatism correction
2
Locking of optics for
astigmatism correction
3
B
3
C
4
1
D
A
2
Anamorphic
beam-shaping optics
E
1
2
1
Laser beam coupler
60SMS-...
2
Anamorphic beam-
shaping optics
1.1
2
1
1.1
2
Anamorphic beam-shaping optics 5AN-...
Correction of laser diode astigmatism
Laser beam source with elliptical beam profile
Anamorphic
lens with
astigmatic
correction
Anamorphic
prism lens
20
Ø25
Adapter
Both ends
with
Ø 19.5 mm
mount (v-
groove)
Order Code
19.5AC19.5
E

Beam cross-section:

circular
FaradayIsolator_DE.indd • Page 44
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44
2012 E
10
Faraday Isolators 48FI-...
1
2
1
Polarizing beam splitter eliminates the s-polarized portion
(typically 1%) of the laser (diode) radiation
2
Faraday crystal in a
strong magnetic field
rotates the input
polarization plane 45°
3
Polarizing beam splitter
exactly aligned with
the output polarization
plane, i.e. by 45° with
respect to the input
polarization
4
Reflective or scattering
surfaces cause pol-
arized or depolarized
reflected signals
5
Polarizing beam
splitter
3
eliminates
the s-polarized portion of the reflected signal
6
Faraday rotator
2
rotates the polarization plane by a further
45° so that the polarization plane of the reflected signal is now
rotated by 90° from the polari zation plane of the input beam
7
Polarizing beam splitter

1

blocks the reflected signal
Function

Transmission
Beam input
1
2
Beam output
Isolation
7
6
5
4
Applications:
Laser sources with integrated Faraday Isolators
Frequency-stabilized HeNe Laser
Figure 1:
Faraday Isolator (optical diode)
compatible with microbench system
aperture Ø 5 mm or Ø 2 mm
isolation > 30 dB, insertion loss < 0.5 dB
1

Spectrum of an undisturbed laser beam source
2
Disturbed spectrum because of back-reflections
(mode hopping)
Dimension [mm]
Aperture
[mm]
Center
Wavelength

Order Code
A B C D 2 3 5 [nm]
80 70 48 19.5
x
400 48FI-5-400
39 27 20 18
x
532 48FI-2-532
65 55 33 19.5
x
532 48FI-5-532
39 27 20 18
x
633 48FI-2-633
65 55 33 19.5
x
633 48FI-5-633
80 70 48 19.5
x
660 48FI-5-660
80 70 48 19.5
x
670 48FI-5-670
65 55 33 19.5
x
780 48FI-5-780
65 55 33 19.5
x
810 48FI-5-810
65 55 33 19.5
x
850 48FI-5-850
100 90 68 19.5
x
980 48FI-5-980
92 82 60 19.5
x
1064 48FI-3-1064
100 90 68 19.5
x
1080 48FI-5-1080
42
30
A
B
C
Ø36
D
Ø 6
3
632.816 nm
Frequency-stabilized
A
B
D
C
E
Transmission
Beam
1
2
3
ation
7
6
5
4
Faraday Isolators are used to protect laser sources from back-
reflection (optical diode), which otherwise causes mode hopping,
noise, frequency instability and a shorter lifetime. The Faraday
Isolators made by ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿ are characterized by:
• high isolation > 30 dB
• low insertion loss < 0.5 dB
• aperture Ø 5 mm
• compatibility with "multicube" and microbench systems
• through-holes for mounting rods
• standard wavelengths in a range of 400 to 1080 nm
• bandwidth: center wavelength ± 20 nm
Fiber coupling of a 1080 nm laser diode with 80mW power and
10°/35° divergence (FWHM)
1
Collimator base 48TE-0-TO3 for laser diode in TO3 case with
integrated TE cooler
2
Collimation optics 60CL-A4.5-03 and collimating flange 48CFS
compatible to microbench system  beam-Ø 1.3 mm und 3.9 mm
3

Mounting plate 48MB-19.5-60, microbench compatible
4

Faraday isolator 48FI-5-1080 with > 30dB attenuation
5

Anamorphic beam shaping 5AN-3-V-08 with form factor
F = 0.33  beam-Ø 1.3 mm
6

Mechanical shutter 48AT-S, microbench compatible
7

Laser beam coupler for singlemode fibers with FC-APC connector
60SMS-4-A7.5-03  coupling efficiency > 70%
8

Polarization-maintaining singlemode fiber PMC-980-6.3-NA012-
3-APC-100
9

Fiber collimator with FC-APC connector 60FC-4-A11-03 
Gaussian beam with beam-Ø 12 mm
10

Micro focus optics 5M-M20-08  12 μm spot at 20 mm range
6
1
3
4
5
7
8
2
9
Fiber Coupled 48TE-0-TO3
Dimensions
A
Frequency-stabilized HeNe Laser (typ. < 500 kHz over some
minutes, < 5 MHz over some hours).
B
Faraday isolator 48FI-5-820 to prevent unwanted back-
reflections from entering the laser system.
C
Mechanical shutter 48AT-S or attenuator for laser output power
adjustment.
D
Laser beam coupler 60SMS-... transfers the beam into
polarization- maintaining singlemode fiber PMC-... or
singlemode fiber SMC-.... and it emerges as a
divergent, axially symmetric Gaussian beam.
E
Mounting console MC-MG-44.5-F-R with
spring shock mounts for absorbing
shocks and vibrations.
SafetyAtWork_ED_2012_newFilter.indd • Page 46
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46
2012 E
Safety at Work
Laser Safety Goggles - Function and Characteristics
Protective function. Full protection goggles and alignment goggles
provide different levels of safety and laser protection.
Full protection goggles, conforming to European standard EN 207,
provide personal protection against laser radiation. The laser
radiation is blocked and is no longer visible.
The protection levels (such as protection level LB..) differ in the
maximum spectral transmission of the filter glasses. The EN 207
standard specifies a maximum incident laser power density (power
per unit area, in W/m
2
) for the laser power that is allowed to irradiate
the filter glass.
Alignment protection goggles, conforming to European standard
EN 208, reduce the visible laser radiation (400 - 700 nm wavelengths)
to that of the power of laser class 2 (EN 60825-1). The laser radiation
remains visible so as to allow the alignment protection glasses to be
used for adjustment tasks while offering significant laser protection
safety.
The protection levels (protection level RB..) describe the maximum
power (watts) of a collimated laser beam that is allowed to irradiate
the goggles.
Maximum power (EN 208): the maximum power of a laser beam in
a specified wavelength range that is sufficiently attenuated by the
alignment protection goggles (in accordance with EN 208).
Maximum transmission (EN 207): maximum trans mission (minimum
attenuation) in a specified wavelength range (according to EN 208).
Maximum power density (EN 207): maximum power density that
the filter glasses can withstand over a longer period (according to
EN 207).
VLT: (visible light transmission): in addition to the specified
wavelengths, laser protection goggles also attenuate the ambient
light. The VLT is the percentage of daylight transmitted.
OD (optical density): logarithmic scale for the attenuation of radiation
at a specified wavelength. The  at wavelength  is defined as:
 = -log
10

Insert for Spectacles
As an accessory for the laser protection goggles
of type R01.T1A01 and R01.T1Q01, the insert RX7
for personal spectacles is available.
Order Code RX7
Laser safety and laser adjustment goggles
The use of laser safety goggles is recommended when working with lower
power lasers from laser protection class 3R and beyond, such as all visible
lasers from ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿ with up to 5 mW of output power.
Laser safety goggles are mandatory for protection class 3B and beyond,
such as all invisible infrared lasers and all visible lasers from
￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿with more than 5 mW of output power.
The correct handling and use of the laser safety goggles protects you
and your colleagues against eye injuries from hazardous laser radiation.
A selection of CE and GS certified laser safety goggles (manufactured
by LaserVision, www.lvg.com) are provided for the lasers manufactured
by ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿
The type of frame is dependent upon whether glass or plastic filters are
fitted. Laser safety goggles with glass filters (Order Code RX7) have a
heavier frame with a facility for attaching personal spectacles, according
to individual requirements. Laser safety goggles with plastic filters are
lighter and can be worn over normal spectacles.
The two distinct protective functions of either full protection goggles or
alignment protection goggles need emphasizing (see box below).
Please Note Typical density curves for the respective filters are shown for information only and are
not guaranteed values. Only the protection levels (RB.. or LB..) are guaranteed by ￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿.
Full and Alignment
Protection Goggles
DIN EN 208/DIN EN 207
Order Code
F18.P1H01.1001
VLT = 35%
Protection
Wavelength
[nm]
Protection
Level
max. Trans-
mission (EN 207)
max.
Power
Density (EN 207)
max.
Power
(EN 208)
Alignment
650 - 680
RB1 - - 10 mW
Full
770 - 800
LB4 10
-4
10
5
W/m
2
-
Full
800 - 1100
LB5 10
-5
10
6
W/m
2
-
Full protection goggles for lasers in the 315 - 532 nm wavelength range
Usable Range
Full and Alignment
Protection Goggles
DIN EN 207 / DIN EN 207
Order Code
F18.P1H02.1001
VLT = 42%
60
40
20
80
1
00
0
500
700
900
1100
400
600
800
1200
1300
300
1000
Optical Density
OD
Protection
Wavelength
[nm]
Protection
Level
max. Trans-
mission (EN 207)
max.
Power
Density (EN 207)
max.
Power
(EN 208)
Alignment
625 - 675
RB1 - - 100 mW
Full
700 - 820
LB5 10
-5
10
6
W/m
2
-
Alignment protection goggles are for lasers in the 620 - 644 nm wavelength range
Use full protection goggles for the 665 - 685 nm wavelengths
Usable Range
VLT = 30%
Full Protection Goggles
DIN EN 207
Order Code
F18.P1L02.1001
500
700
900
1100
Wellenlän
g
e in nm
400
600
800
1200
1300
300
1000
Optical Density
OD
Protection
Wavelength
[nm]
Protection
Level
max. Trans-
mission (EN 207)
max.
Power
Density (EN 207)
max.
Power
(EN 208)
Full
315 - 532 LB6 10
-6
10
7
W/m
2
-
Full protection goggles for lasers in the 315 - 532 nm wavelength range
Usable Range
Full Protection Goggles
DIN EN 207
Order Code
R01.T1Q01
VLT = 35%
Attenuation Area
Optical Density
OD
Protection
Wavelength
[nm]
Protection
Level
max. Trans-
mission (EN 207)
max.
Power
Density (EN 207)
max.
Power
(EN 208)
Full
690 - 1320 LB5
10
-5
10
6
W/m
2
-
Full
1320 - 1550 LB2
10
-2
10
3
W/m
2
-
Allround googles as full protection for lasers in the 690 - 1500 nm wavelength range
Usable Range
Full Protection Goggles
DIN EN 207
Order Code
R01.T1A02
VLT = 25%
Optical Density
OD
0
60
40
20
80
1
00
500
700
900
1100
400
600
800
1200
1300
300
1000
Protection
Wavelength
[nm]
Protection
Level
max. Trans-
mission (EN 207)
max.
Power
Density (EN 207)
max.
Power
(EN 208)
Alignment
630 - 690 R2 - - 100 mW
Alignment protection goggles for lasers in the 630 - 690 nm wavelength range
Usable Range
Optical Density
OD
500
700
900
1100
400
600
800
1200
1300
300
1000
< 100 nm
100 - 315 nm 315 - 400 nm 400 - 1400 nm
1.4 - 1000 μm > 1 mm
X-ray and
gamma
radiation
UV-B and
UV-C
UV-A VIS and IR-A
IR-B and IR-C Microwave
Keratinitis and
conjunctivitis
(pink eye)
Eye cataract
Photochemical
and thermal injury
of the retina
Burning of the
cornea
Eye cataract
Wavelength
Types of Damage Caused to Eyes by Radiation
Wavelength in nm
Wavelength in nm
Wavelength in nm
Wavelength in nm
60
40
20
80
100
0
60
40
20
80
1
00
0
500
700
900
1100
400
600
800
1200
1300
300
1000
Wavelength in nm
60
40
20
80
100
0
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47
2012 E
Invisible infrared radiation in the range 750 - 1300 nm
and 900 - 1700 nm can be converted to visible light
by luminescence in the active detector layer,
indicating the position and approximate width of
the infrared beam.
The detector cards should not be used for
measurement tasks such as the quantitative
determination of the beam diameter. With high
power lasers, even the border area of the beam
with <1 % of the intensity maximum is visualized,
although additionally widened by scattering
processes in the detector layer. Only the central
area is visualized for a low power beam.
Detector cards of series SK...R diffusely “reflect”
the luminescent radiation from the active layer and
are impermeable to the beam. In contrast, the
detector cards of the series SK...T are transparent.
The beam traverses the active layer and the
diffusely luminescent radiation is also visible from
the back of a SK...T series card.
IR Detection Card SK100R and SK101R
Left: active sensor area
Right: plot of spectral sensitivity
IR Detection Card
Laser Safety
IR Detection Card
Order
Code
Max. sensitivity [nm]
Spectral range [nm]
Sensor area [mm²]
SK 100R
1000
750 - 1300
20 x 20
1
SK 101R
1000
750 - 1300
40 x 60
2
SK 130R
1300
900 - 1700
20 x 20
1
SK 131R
1300
900 - 1700
40 x 60
2
IR
Laser
Reflection
Order Code
Size
SK-LB-T1 Triangle 10 mm
SK-LB-T2 Triangle 46 mm
SK-LB-T3 Triangle 92 mm
SK-LB-T4 Triangle 185 mm
Laser classification
1, 1M, 2, 2M,
3R, 3B
(see list above)
Wavelength [nm]
Laser power [W] or
pulse energy [J]
Laser Type:
HeNe
Diode
Nd:Yag
others
SK-LB - 3B - 633 - 25 - HeNe - 100x50 - BI - E
Option:
E = Sign for removable enclosure
B = Basic information sign without
specifications
I = Laser specification sign
BI = both B and I
Label size
105 x 52 mm type
1
..105x52
148 x 74 mm type
1
..148x74
64 x 34 mm type
2
....64x34
According to DIN IEC 60825-1:2007, every laser system must be
labelled with a warning triangle. Additionally, all lasers must be
labelled with additional warning information specific to the laser class:
Class 1:
"CLASS 1 LASER PRODUCT"
Class 1M:
" LASER RADIATION, DO NOT VIEW DIRECTLY WITH OPTICAL
INSTRUMENTS, CLASS 1M LASER PRODUCT"
Class 2:
"LASER RADIATION, DO NOT STARE INTO BEAM, CLASS 2
LASER PRODUCT"
Class 2M:
" LASER RADIATION, DO NOT STARE INTO BEAM OR VIEW
DIRECTLY WITH OPTICAL INSTRUMENTS, CLASS 2M LASER
PRODUCT"
Class 3R:
" LASER RADIATION, AVOID DIRECT EYE EXPOSURE, CLASS
3R LASER PRODUCT"
Class 3B:
" LASER RADIATION, AVOID EXPOSURE TO THE BEAM,
CLASS 3B LASER PRODUCT"
Class 4:
"LASER RADIATION, AVOID EYE OR SKIN EXPOSURE TO
DIRECT OR SCATTERED RADIATION, CLASS 4 LASER
PRODUCT"
Furthermore, all lasers of class 2 to 4 must have a warning that
lists the laser specifications, including the laser source, the wave-
length and the laser power or pulse energy.
If the laser is enclosed but the housing can be opened then the
housing must also be labelled with a warning triangle and the requisite
information about the laser class, as listed below:
Class 1: The laser is safe for any form of measurement task and the
maximum permitted exposure (MPE) cannot be exceeded. Enclosed high
power laser systems, with an integrated automatic shutdown system on
opening of the enclosure, are also included in this laser class.
Class 1M: As for class 1, except when magnifying optics such as
microscopes and telescopes are used: safety limits may be exceeded
and class 3 dangers may be possible.
Class 2: Visible laser light (400 - 700 nm) with <1 mW continuous wave
(CW) and/or < 0.25 s exposure time (with an energy limit according to
the standard) is considered to be safe. Radiation either side of the
400 - 700 nm range is considered to be class 1.
Class 2M: As for class 2, except when magnifying optics such as
microscopes and telescopes are used.
Class 3R: If handled carefully, the laser is considerd safe because only
a low risk of injury exists. Visible CW lasers in Class 3R are limited to
5 mW. For other wavelengths and for pulsed lasers, other limits apply.
Class 3B: Direct exposure is hazardous for the eye, but diffuse
reflections such as from paper are not harmful. The limits apply to
wavelengths and to operation mode (as for CW and pulsed lasers).
Laser safety goggles are absolutely required when a direct view of the
laser beam is at all possible. Class-3B lasers must be equipped with a
isolating key switch and a safety interlock.
Class 4: Every type of laser beyond class 3B.
2
1
Order Code
Type
1
B
B
I
Type
2
Language:
E = English
D = German
Laserdiodenauswahl.indd • Page 50
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50
2012 E
Table 1 Technical Data and Appropriate Collimator Types (Other diodes are available on request)
Row
 [nm]
P
[mW]
LD
Order
Code
Single-/
Multi-
mode

|| FWHM

!"#




FWHM

!"#
Casing
Pin-
Out
25CM 55CM 90CM 29CM 95CM
40...-
PO
40...-
NO
48TE 48-0
20C,
20P
21C,
21P
22P 24PX 50BM 55BC
1
Fabry Perot
2 405 120 X05 S 9 19.5 5.6 1 X X X X X X X X X
3 515 25 X09 S 10 22.5 5.6 F4 X X X X X X X X X
4 633 5 H01 S 7 29.5 9 3 X X X X X
5 635 15 H10 S 8 28 9 3 X X X X X X X X X
6 639 30 N09 S 7 30.5 9 3 X X X X
7 640 45 H22 S 9 21 5.6 3 X X X X X X X X X
8 659 120 M25 S 10.2 16.5 5.6 6 X X X X
9 660 35 M01 S 9 22 5.6 2 X X X X X X X X X
10 660 60 M26 S 8.5 20.5 5.6 2 X X X X X X X X X
11 685 35 M21 S 10.5 19 5.6 2 X X X X X
12 685 50 H13 S 8.5 21 5.6 2 X X X X X X X X X
13 785 8 M10 S 11 29 5.6 3 X X X X X
14 785 80 AR3 S 9 17 5.6 3 X X X X
15 808 200 N25 S 8 16 5.6 3 X
16 825 200 M35 S 8 16 5.6 1 X
17 830 50 H19 S 9 22 5.6 2 X X X X X
18 830 150 N23 S 8 16 5.6 2 X X X X
19 850 100 EY05 S 10 30 9 1 X X X X
20
1060 50 Q05 S 10 30 9 3 X X X X X X X X X
21
CircuLaser
TM
Diodes
22
635 5 B08 S 8 8 9 3 X X X X X X X X
23 635 15 B07 S 8 8 9 3 X X X X X X X X
24 639 35 B21 S 7.7 8 5.6 3 X X X X X X X X
25 658 35 B09 S 8 8 5.6 2 X X X X X X X X
26 658 130 B20 S 10 10 5.6 2 X X X
27 690 35 B12 S 8.5 8 5.6 2 X X X X X X X X
28 785 70 B10 S 8 8 5.6 2 X X X X X X X X
29 828 150 B16 S 7 7 9 3 X X X
30
31 DFB / DBR (S* narrow emission bandwidth because of integrated grating)
32
785
50 EY02 S* 10 30 9 1 X X
33
860
100 EY06 S* 8 21 9 1 X X
34
923
100 EY07 S* 8 21 9 1 X X
35
1061
100 EY08 S* 10 33 TO3 4 X X
36
1065
120 FB02 S* 11.5 30 9 1 X X
37
1080
80 EY09 S* 10 35 TO3 4 X X
38
1305
6 M06 S* 25 30 5.6 4 X X
39
1550
6 M15 S* 25 30 5.6 4 X X
40
1850
5
sold by manu-
facturer

*
S* 30 50 TO5 4 X X
41
1900
5
sold by manu-
facturer
*
S* 30 50 TO5 4 X X
42
2334 3
sold by manu-
facturer

*
S* 20 40 TO5 4 X X
43
Superluminescent Diodes
44 679 ± 4 10
sold by manu-
facturer
**
9 2 X X
45 860 ±60 15
sold by manu-
facturer
***
TOW2 X X
46 650 ± 3 0.5
sold by manu-
facturer
***
TOW2 X X
47
VCSEL
48
760 0.3
U04
S 17±7 TO46 3 X X
49 780 2.5
on request
S TO46 2 X X
50 850 8
on request
S 29 29 TO46 6 X X
Connection Types and Pin-Out
LD = laser diode
PD = photo diode
Example: Ø 9 mm LD package
Refer to LD data sheet for other types.
*

sold directly by nanoplus **

sold directly by Qphotonics ***

sold directly by Superlum
Other diodes are available on request.
1 2
3
4
LD PD
1 2
3
LD
1
3
2
LD
PD
1
3
1 =LD anode
LD cathode
PD cathode
PD anode
case ground
=
=
2
3
1 = LD anode
LD cathode
PD anode
PD cathode
case ground
=
=
2
3
1 = LD cathode
LD anode
PD cathode
PD anode
case ground
=
=
2
3
1 = LD cathode
LD anode
case ground
PD cathode
=
=
2
4
PD anode=3
1 =LD anode
PD cathode
PD anode
=
=
2
1 = LD anode
n.c.=2
LD cathode=3
1 =LD anode
LD cathode=2
n.c.=3
4
LD cathode=3
2
LD
PD
1
3
2
LD
PD
1
3
2
4
LD
PD
1
3
2
LD
F4
F
6
4
3
2
1
1
2
3
4
1
2
3
Overview of Laser Diodes