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Proceedings Paper

Effect of KTP gray-tracking on the SH efficiency
Author(s): Feng-Tie Wu; Wenzhen Zhang; Guan-Qing Yao
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Paper Abstract

Second harmonic energy conversion efficiencies in KTP and BBO crystals have been investigated by using pico-second pulse. For extracavity-doubled, conversion efficiencies 43.8% and 32% were obtained, respectively. In intracavity-doubled, efficiencies 53.4% and 70% by using convex-ARR (Anti-resonant Ring) unstable resonator, 60.2% and 80.6% by using unstable confocal resonator were achieved, respectively. It shows that KTP crystal has higher conversion efficiency at lower intensity (under KTP gray-tracking threshold) and lower efficiency at high power laser compared to the BBO crystal. This result principally caused by the KTP gray-tracking phenomena.

Paper Details

Date Published: 7 April 2004
PDF: 7 pages
Proc. SPIE 5478, Laser Optics 2003: Solid State Lasers and Nonlinear Frequency Conversion, (7 April 2004); doi: 10.1117/12.560953
Show Author Affiliations
Feng-Tie Wu, Hua Qiao Univ. (China)
Wenzhen Zhang, Hua Qiao Univ. (China)
Guan-Qing Yao, Hua Qiao Univ. (China)

Published in SPIE Proceedings Vol. 5478:
Laser Optics 2003: Solid State Lasers and Nonlinear Frequency Conversion
Vladimir I. Ustugov, Editor(s)

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