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Proceedings Paper

A highly efficient broadband picosecond pump high-gain OPCPA system for Ti-sapphire seed pulses; an ideal seed for high-contrast, large-energy/aperture CPA laser system: Vulcan
Author(s): W. Shaikh; I. O. Musgrave; M. Galimberti; A. Boyle
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Paper Abstract

The achievement of high contrast, high efficiency OPCPA systems has been a long established goal. We achieve close to ~20% conversion in a picosecond OPCPA system. This is now the standard seed for our petawatt pre-amplifier laser system which had a conventional 108 nanosecond gain. We thereby eliminate the need to the first nanosecond gain stage. We achieve a contrast at the 10-8 level when using the petawatt system in this configuration. We have also demonstrated a second stage of picosecond amplification with an extra gain of >2, maintaining the bandwidth and transform limited nature of the pulses, providing the potential for further improvements.

Paper Details

Date Published: 15 February 2012
PDF: 7 pages
Proc. SPIE 8240, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI, 82400T (15 February 2012); doi: 10.1117/12.908385
Show Author Affiliations
W. Shaikh, Science and Technology Facilities Council (United Kingdom)
I. O. Musgrave, Science and Technology Facilities Council (United Kingdom)
M. Galimberti, Science and Technology Facilities Council (United Kingdom)
A. Boyle, Science and Technology Facilities Council (United Kingdom)


Published in SPIE Proceedings Vol. 8240:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI
Konstantin L. Vodopyanov, Editor(s)

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