Effect of KTP gray-tracking on the SH efficiency

Feng-Tie Wu; Wenzhen Zhang; Guan-Qing Yao

doi:10.1117/12.560953

7 April 2004 Effect of KTP gray-tracking on the SH efficiency

Feng-Tie Wu, Wenzhen Zhang, Guan-Qing Yao

Proceedings Volume 5478, Laser Optics 2003: Solid State Lasers and Nonlinear Frequency Conversion; (2004) https://doi.org/10.1117/12.560953
Event: Laser Optics 2003, 2003, St. Petersburg, Russian Federation

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.

Citation Download Citation

Feng-Tie Wu, Wenzhen Zhang, and Guan-Qing Yao "Effect of KTP gray-tracking on the SH efficiency", Proc. SPIE 5478, Laser Optics 2003: Solid State Lasers and Nonlinear Frequency Conversion, (7 April 2004); https://doi.org/10.1117/12.560953

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