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Proceedings Paper

Control of pulse duration and shape in a 400-W Q-switched 532-nm laser
Author(s): Simon Chard; Timothy S. McComb; Ying Chen; Michael Barty; Young Key Kwon
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Paper 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.

Paper Details

Date Published: 15 February 2018
PDF: 7 pages
Proc. SPIE 10511, Solid State Lasers XXVII: Technology and Devices, 1051113 (15 February 2018); doi: 10.1117/12.2290087
Show Author Affiliations
Simon Chard, Andritz Powerlase, Ltd. (United Kingdom)
Timothy S. McComb, Andritz Powerlase, Ltd. (United Kingdom)
Ying Chen, Andritz Powerlase, Ltd. (United Kingdom)
Michael Barty, Andritz Powerlase, Ltd. (United Kingdom)
Young Key Kwon, Andritz Powerlase, Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 10511:
Solid State Lasers XXVII: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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