Fast-Axis Collimation Optics

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Nov 15, 2013 (3 years and 6 months ago)

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Fast-Axis Collimation Optics
General Description
The most important optical component in the beam shaping systems in high-power diode lasers, is the Fast-Axis Collimation optic.
The lenses are manufactured from high-quality glass and have an acylindrical surface. Their high numerical aperture permits the
entire diode output to be collimated with outstanding beam quality. The high transmission and excellent collimation characteristics
guarantee the highest levels of beam shaping efficiency for diode lasers.
Advantages

aspheric cylindrical lens

highest beam quality

high numerical aperture (NA 0.8)

diffraction-limited collimation

transmission up to 99%

highest level of precision and uniformity

long term stability

optimized design
Product Spectrum
In order to offer the best solution for your application INGENERIC
provides a broad spectrum of Fast-Axis Collimation optics from the
shelf. With respect to length or support structures the lenses can be
tailored to your specific needs. For details please refer to the
technical specifications on the following pages.
Quality
We operate a 100% quality testing policy. The beam profile, residual
divergence and geometry along the longitudinal axis of each optic,
is characterized as it moves along the production line. By conducting
measuring operations along the beam path, we ensure that there will
be no deviation from these measured beam characteristics when the
optic is subsequently used in industrial practice. In conjunction with
our sophisticated manufacturing technology, this guarantees that
our lenses are free of side lobes or smile. Full details of all optics are
available on request.
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9 NA [-]
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 EFL [mm] 10.0
Fast-Axis Collimation
FAC Lenses
Specification Data
Lens Type NA
EFL
[mm]
BFL
[mm]
L
[mm]
H
[mm]
W
[mm]
SB HB XB
D
[mrad]
EFL 500 µm
FAC-08-500 0.80 0.50 0.10 tbd.0.90 0.70 x x
1.30
EFL 600 µm
FAC-08-600 0.80 0.60 0.15 tbd.1.00 0.80 x x x
1.20
EFL 700 µm
FAC-07-700 0.65 0.70 0.25 tbd.1.00 0.80 x x
1.00
EFL 900 µm
FAC-08-900 0.80 0.90 0.09 tbd.1.50 1.50 x x x
0.80
EFL 1000 µm
FAC-08-1000 0.75 1.00 0.15 tbd.1.50 1.50 x x x
0.70
EFL 1100 µm
FAC-06-1100 0.60 1.10 0.16 tbd.1.50 1.68 x x x
0.65
EFL 1200 µm
FAC-08-1200
FAC-06-1200
0.80
0.60
1.20
1.20
0.09
0.09
tbd.
tbd.
1.90
1.50
1.97
1.97
x
x
x
x
0.60
0.60
EFL 1300 µm
FAC-07-1300
FAC-05-1300
0.70
0.50
1.30
1.30
0.11
0.11
tbd.
tbd.
1.90
1.50
2.10
2.10
x
x
x
x
0.55
0.55
EFL 1500 µm
FAC-08-1500
FAC-05-1500
0.80
0.50
1.50
1.50
0.09
0.09
tbd.
tbd.
2.30
1.50
2.47
2.47
x
x
x
x
0.48
0.48
EFL 2000 µm
FAC-07-2000 0.65 2.00 0.10 tbd.2.80 3.37 x x 0.36
EFL 2500 µm
FAC-07-2500 0.65 2.50 1.10 tbd.3.50 2.47 x x 0.29
EFL 2500 µm
FAC-08-2800 0.75 2.80 0.09 tbd.4.00 4.78 x x 0.26
NA: Numerical aperture
EFL: Effective focal length @ 808 nm
BFL: Back focal length @ 808 nm
Coating: Standard AR 780-1020 nm
Transmission: > 99%
L: Length [+/-0.10 mm) according to customer specification
H: Height (+/- 0.01 mm)
W: Width (+/- 0.01 mm)
Material: N-LaF21
Refractive Index n @ 808 nm: 1.77584
Quality specification for laser bar with divergence of 35° (FWHM)
H
W
Fast-Axis Collimation
FAC Lenses
Quality Standards
INGENERIC offers Fast-Axis Collimation optics with different quality levels. Depending on the requirement of your application please
select between standard, high- or extra high brightness collimation quality. With the premium collimation quality you are able to
secure a power enclosure of more than 90% in a predefined angle.
SB Standard Brightness power within an angle of +/- D [mrad] > 70%
HB High Brightness power within an angle of +/- D [mrad] > 85%
XB Extra-High Brightness power within an angle of +/- D [mrad] > 90%
Service
We also design, develop and manufacture customized FAC lenses, which have been
optimized to meet the specific requirements of your application. In order to simplify
mounting, we also offer the FAC lenses with additional surfaces for mounting and/or
support structures.
Customized numerical aperture, focal length and back focal length
Customized length
Customized coating
Bottom, side taps or shoulders for mounting
Customized FAC with total internal reflection
ING-FAC-Selector
How to select the optimum FAC for your application? To answer this question it is evident to know the specification of your
diode and the required specification of the collimated beam. Please conduct the following steps.
1 Select in the right diagram the divergence of your
diode and head up to the line with the corresponding
smile of your diode bar.
2 Draw a horizontal line to the left diagram.
3 Dependent on the selected FAC you get as a result the
final divergence of your diode/FAC combination. Alter-
natively you may select your required final divergence
and draw a vertical line. The crossing of vertical and
horizontal line indicates the appropriate FAC.
INGENERIC GmbH Dennewartstr. 25-27 52068 Aachen Germany
Fon: +49 (0) 241 963-134 0 Fax: +49 (0) 241 963-134 9 Email: contact@ingeneric.com www.ingeneric.com
Copyright © 2010 INGENERIC GmbH. All rights reserved. Subject to change without notice. June 2010