Assembly of fast-axis collimating lenses with high-power laser diode bars

Torsten Possner; Bernhard Messerschmidt; Anke Kraeplin; Veit Bluemel; Bernd Hoefer; Peter Schreiber

doi:10.1117/12.384424

27 April 2000 Assembly of fast-axis collimating lenses with high-power laser diode bars

Torsten Possner, Bernhard Messerschmidt, Anke Kraeplin, Veit Bluemel, Bernd Hoefer, Peter Schreiber

Proceedings Volume 3952, Optoelectronic Interconnects VII; Photonics Packaging and Integration II; (2000) https://doi.org/10.1117/12.384424
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States

Abstract

The assembly of fast-axis collimating lenses (FAC-) with high power laser diode (HPLD) bars and stacks is discussed. FAC-lenses are cylindrical lenses of high numerical aperture and short focal length for the collimation of the strongly divergent radiation emitted perpendicular to the active region of a high power laser diode bar. These FAC-lenses are necessary for all kinds of beam transformation systems using HPLD bars and stacks. The lenses have to be fixed at the heat sink of the laser diode bar with an accuracy of < 0.3 micrometers and for special transformation system with a definite tilt of 1.2 degrees and an accuracy of better than mrad. In most cases an active assembly of the whole beam transformation system is necessary. Here we propose another approach.

Citation Download Citation

Torsten Possner, Bernhard Messerschmidt, Anke Kraeplin, Veit Bluemel, Bernd Hoefer, and Peter Schreiber "Assembly of fast-axis collimating lenses with high-power laser diode bars", Proc. SPIE 3952, Optoelectronic Interconnects VII; Photonics Packaging and Integration II, (27 April 2000); https://doi.org/10.1117/12.384424

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