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Proceedings Paper

Scalable pump beam arrangement for diode pumped alkali lasers
Author(s): Masamori Endo; Ryuji Nagaoka; Hiroki Nagaoka; Toru Nagai; Fumio Wani
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Paper 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.

Paper Details

Date Published: 20 February 2018
PDF: 10 pages
Proc. SPIE 10513, Components and Packaging for Laser Systems IV, 105130K (20 February 2018); doi: 10.1117/12.2287053
Show Author Affiliations
Masamori Endo, Tokai Univ. (Japan)
Ryuji Nagaoka, Kawasaki Heavy Industries, Ltd. (Japan)
Hiroki Nagaoka, Kawasaki Heavy Industries, Ltd. (Japan)
Toru Nagai, Kawasaki Heavy Industries, Ltd. (Japan)
Fumio Wani, Kawasaki Heavy Industries, Ltd. (Japan)


Published in SPIE Proceedings Vol. 10513:
Components and Packaging for Laser Systems IV
Alexei L. Glebov; Paul O. Leisher, Editor(s)

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