17 December 2014 Multi-emitter laser multiplexer using a two-mirror beam shaper
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Proceedings Volume 9293, International Optical Design Conference 2014; 92930C (2014) https://doi.org/10.1117/12.2072628
Event: International Optical Design Conference, 2014, Kohala Coast, Hawaii, United States
A system was designed and built to spatially multiplex four broad area laser diodes (BALD) and condense the light into a multi-mode fiber with a core diameter of 105 um and an NA of 0.15. The lasers were efficiently combined with an étendue aspect ratio scaler (EARS) optic. The EARS works under the principle of a two mirror beam shaper. We were able to successfully couple more than 87% of the optical energy into the fiber. The design of the optical system and the results of several built systems are discussed.
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Joshua M. Cobb, John Brennan, Vikram Bhatia, "Multi-emitter laser multiplexer using a two-mirror beam shaper", Proc. SPIE 9293, International Optical Design Conference 2014, 92930C (17 December 2014); doi: 10.1117/12.2072628; https://doi.org/10.1117/12.2072628

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