Improving lifetime of quasi-CW laser diode arrays for pumping 2-micron solid state lasers

Farzin Amzajerdian; Byron L. Meadows; Nathaniel R. Baker; Bruce W. Barnes; Upendra N. Singh; Michael J. Kavaya

doi:10.1117/12.724777

10 May 2007 Improving lifetime of quasi-CW laser diode arrays for pumping 2-micron solid state lasers

Farzin Amzajerdian, Byron L. Meadows, Nathaniel R. Baker, Bruce W. Barnes, Upendra N. Singh, Michael J. Kavaya

Proceedings Volume 6550, Laser Radar Technology and Applications XII; 655010 (2007) https://doi.org/10.1117/12.724777
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

Operating high power laser diode arrays in long pulse regime of about 1 msec, which is required for pumping 2-micron thulium and holmium-based lasers, greatly limits their useful lifetime. This paper describes performance of laser diode arrays operating in long pulse mode and presents experimental data on the active region temperature and pulse-to-pulse thermal cycling that are the primary cause of their premature failure and rapid degradation. This paper will then offer a viable approach for determining the optimum design and operational parameters leading to the maximum attainable lifetime.

Citation Download Citation

Farzin Amzajerdian, Byron L. Meadows, Nathaniel R. Baker, Bruce W. Barnes, Upendra N. Singh, and Michael J. Kavaya "Improving lifetime of quasi-CW laser diode arrays for pumping 2-micron solid state lasers", Proc. SPIE 6550, Laser Radar Technology and Applications XII, 655010 (10 May 2007); https://doi.org/10.1117/12.724777

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