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Proceedings Paper

Q-switched Nd:YAG lasers for high average-power and high peak-power operation
Author(s): Mike Poulter; Nick Hay; Ben Fulford; Paul Campton; Mike Mason; David Burns
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Paper Abstract

The direct side-pumping of Nd:YAG rods with laser diodes has been shown to be a cost effective scheme for scaling to simultaneous high average and high peak power operation. Careful control of the parameters that govern the performance of a multi-spatial mode MOPA system has led to the demonstration of reliable Q-switched average powers of up to 1600 W and peak powers in excess of 18 MW at the 1064 nm fundamental wavelength. The techniques used to refine the properties of an infrared stable resonator in order to optimise intra-cavity second harmonic generation are discussed. Average powers of up to 290 W and peak powers of up to 0.45 MW at 532 nm have been demonstrated from a single cavity. By polarisation multiplexing the outputs of two cavities emitting at 532 nm, we have achieved single-beam average and peak powers of up to 580 W and 0.9 MW respectively and gained flexible control of pulse duration and temporal shape.

Paper Details

Date Published: 27 February 2009
PDF: 12 pages
Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 719309 (27 February 2009); doi: 10.1117/12.814927
Show Author Affiliations
Mike Poulter, Powerlase Ltd. (United Kingdom)
Nick Hay, Powerlase Ltd. (United Kingdom)
Ben Fulford, Powerlase Ltd. (United Kingdom)
Paul Campton, Powerlase Ltd. (United Kingdom)
Mike Mason, Powerlase Ltd. (United Kingdom)
David Burns, Univ. of Strathclyde (United Kingdom)

Published in SPIE Proceedings Vol. 7193:
Solid State Lasers XVIII: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh K. Shori, Editor(s)

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