Control of pulse duration and shape in a 400-W Q-switched 532-nm laser

Simon Chard; Timothy S. McComb; Ying Chen; Michael Barty; Young Key Kwon

doi:10.1117/12.2290087

15 February 2018 Control of pulse duration and shape in a 400-W Q-switched 532-nm laser

Simon Chard, Timothy S. McComb, Ying Chen, Michael Barty, Young Key Kwon

Proceedings Volume 10511, Solid State Lasers XXVII: Technology and Devices; 1051113 (2018) https://doi.org/10.1117/12.2290087
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

We present a 400 W Q-switched 532 nm laser using several techniques to control the pulse duration and shape. The laser consists of two separate intracavity frequency-doubled cavities, incoherently combined to give 50 mJ total pulse energy. By extending the cavity length the pulse duration can be increased from 66 ns to 140 ns at 8 kHz with no significant power reduction. Varying the repetition rate and the triggering delay for each cavity’s Q-switch allows further adjustment of the pulse duration. The pulse shape can be controlled by adjusting this delay and attenuating the individual cavities.

Citation Download Citation

Simon Chard, Timothy S. McComb, Ying Chen, Michael Barty, and Young Key Kwon "Control of pulse duration and shape in a 400-W Q-switched 532-nm laser", Proc. SPIE 10511, Solid State Lasers XXVII: Technology and Devices, 1051113 (15 February 2018); https://doi.org/10.1117/12.2290087

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