Scalable pump beam arrangement for diode pumped alkali lasers

Masamori Endo; Ryuji Nagaoka; Hiroki Nagaoka; Toru Nagai; Fumio Wani

doi:10.1117/12.2287053

20 February 2018 Scalable pump beam arrangement for diode pumped alkali lasers

Masamori Endo, Ryuji Nagaoka, Hiroki Nagaoka, Toru Nagai, Fumio Wani

Proceedings Volume 10513, Components and Packaging for Laser Systems IV; 105130K (2018) https://doi.org/10.1117/12.2287053
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

A scalable pumping method for a diode-pumped alkali laser (DPAL) is proposed. In the past, pump beams were collinearly or transversely arranged to the optical axis of the optical resonator. In our proposal, pump sources are circularly arranged around the optical axis, and the pump beams irradiate the gain cell at a small (0.1 radians) angle from the optical axis. Tens of pump beams can be coupled to the gain medium with high circular symmetry and high coupling efficiency. The idea was verified by numerical simulation, and the results were validated by experimental investigation.

Conference Presentation

Citation Download Citation

Masamori Endo, Ryuji Nagaoka, Hiroki Nagaoka, Toru Nagai, and Fumio Wani "Scalable pump beam arrangement for diode pumped alkali lasers", Proc. SPIE 10513, Components and Packaging for Laser Systems IV, 105130K (20 February 2018); https://doi.org/10.1117/12.2287053

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