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Proceedings Paper

Ceramic Yb: YAG microchip laser
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Paper Abstract

An efficient microchip laser utilizing domestically fabricated ceramic Yb:YAG is presented. In continuous-wave (cw) and Q-switched operation, the laser maintains linear polarization with 22 dB extinction and oscillates in the fundamental TEM00 mode. In cw mode, the ceramic laser has an output power of 2.25 W and a slope efficiency of 66%. When passively Q-switched at 11.4 kHz repetition rate using Cr:YAG, the 1.9 ns pulse has an average power of 0.72 W and a slope efficiency of 46%. To our knowledge, this is currently the highest reported power from a ceramic Yb:YAG laser. The laser performance of the 5-at.% ceramic is compared to a 10-at.% single crystal, and we discuss how the scattering loss and storage efficiency of the ceramic medium affect its laser characteristics.

Paper Details

Date Published: 26 April 2007
PDF: 10 pages
Proc. SPIE 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 63460V (26 April 2007);
Show Author Affiliations
Eric P. Ostby, Raytheon Co. (United States)
Richard A. Ackerman, Raytheon Co. (United States)
Jean C. Huie, Raytheon Co. (United States)
Richard L. Gentilman, Raytheon Co. (United States)

Published in SPIE Proceedings Vol. 6346:
XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Dieter Schuöcker, Editor(s)

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