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Proceedings Paper

Q-switched diode-pumped Nd:YAG rod laser with output power of 420W at 532nm and 160W at 355nm
Author(s): David R. Dudley; Oliver Mehl; Gary Y. Wang; Ezra S. Allee; Henry Y. Pang; Norman Hodgson
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Paper Abstract

Intra-cavity harmonic generation in diode-pumped Q-switched Nd:YAG rod lasers is a preferred architecture to generate high output power at 532nm and 355nm in multimode operation. We have developed a side-pumped, dual rod Nd:YAG laser with intra-cavity second harmonic generation using Type II LBO in a double-pass configuration. A maximum 532nm output power of 420 W was achieved at 10 kHz with an M^2 of about 24. The pulse duration was 70 ns with a pulse energy stability of less than 0.7% rms. By incorporating a novel birefringence compensation technique and adding a Type II LBO sum frequency generator, we attained 160W of 355nm output at a repetition rate of 8 kHz with an M^2 of 18 and a pulse duration of 45 ns.

Paper Details

Date Published: 27 February 2009
PDF: 8 pages
Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 71930Z (27 February 2009); doi: 10.1117/12.808345
Show Author Affiliations
David R. Dudley, Coherent, Inc. (United States)
Oliver Mehl, Coherent, Inc. (United States)
Gary Y. Wang, Coherent, Inc. (United States)
Ezra S. Allee, Coherent, Inc. (United States)
Henry Y. Pang, Coherent, Inc. (United States)
Norman Hodgson, Coherent, Inc. (United States)

Published in SPIE Proceedings Vol. 7193:
Solid State Lasers XVIII: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh K. Shori, Editor(s)

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