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Proceedings Paper

Beam vignetting effect in micro-optic collimation and transmission for high power diode laser arrays
Author(s): H. Forrer; H. Moser; M. Huber; D. Kura; M. Schmidlin; S. Mourad; M. Forrer
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Paper Abstract

High power diode laser arrays need special micro-optic beamshaping to optimize for collimation and spot focusing. A known and established solution makes use of cylindrical micro- optics for fast axis collimation and subsequent individual twisting of each emitter beamlet by a micro-optic cylindrical telescope array in order to achieve a symmetric beam parameter product. A crucial factor for the overall performance is the achievable transmission to collimation and the fiber coupling efficiency. We present an optical analysis of vignetting effects on the transmission in the beam twisting setup and show an optimization which can be achieved by advanced micro-optic production technologies.

Paper Details

Date Published: 20 February 2015
PDF: 11 pages
Proc. SPIE 9346, Components and Packaging for Laser Systems, 934602 (20 February 2015); doi: 10.1117/12.2077415
Show Author Affiliations
H. Forrer, FISBA OPTIK AG (Switzerland)
H. Moser, FISBA OPTIK AG (Switzerland)
M. Huber, FISBA OPTIK AG (Switzerland)
D. Kura, FISBA OPTIK AG (Switzerland)
M. Schmidlin, FISBA OPTIK AG (Switzerland)
S. Mourad, FISBA OPTIK AG (Switzerland)
M. Forrer, FISBA OPTIK AG (Switzerland)

Published in SPIE Proceedings Vol. 9346:
Components and Packaging for Laser Systems
Alexei L. Glebov; Paul O. Leisher, Editor(s)

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