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Proceedings Paper

High-efficiency LBO crystal for high-power Q-switched intracavity SHG Nd:YAG lasers
Author(s): Gordon Gu; Clifford E. Morrow; Shixiong Chen
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Paper Abstract

KTiOPO4 (KTP) has been a frequent choice for second harmonic generation (SHG) of Nd:YAG laser applications. However for high power intracavity frequency doubled Nd:YAG laser systems, we have found it is very difficult to use because of the low damage threshold, smaller acceptance angle and higher birefringence (larger walk-off angle). In order to achieve high power (more than 80 watts) of 532 nm laser light from a single Nd:YAG laser cavity, we have studied the intracavity SHG of lithium triborate (LiB3O5 or LBO), a relatively new nonlinear optical crystal discovered in 1989. Both theoretical and experimental results are discussed in terms of the damage threshold, SHG conversion efficiency, acceptance and walk- off angles, as well as the techniques for both critical and non-critical phase-matching.

Paper Details

Date Published: 25 March 1996
PDF: 9 pages
Proc. SPIE 2698, Solid State Lasers V, (25 March 1996); doi: 10.1117/12.236147
Show Author Affiliations
Gordon Gu, Sharplan Lasers, Inc. (United States)
Clifford E. Morrow, Sharplan Lasers, Inc. (United States)
Shixiong Chen, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 2698:
Solid State Lasers V
Richard Scheps, Editor(s)

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