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Proceedings Paper

Regenerative amplifier for the OMEGA laser system
Author(s): Andrei Babushkin; W. Bittle; S. A. Letzring; Mark D. Skeldon; Wolf D. Seka
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Paper Abstract

We present the requirements, design, and experimental results for a negative feedback-controlled Nd:YLF regenerative amplifier for the OMEGA laser system. This externally synchronizable region boosts the energy of temporally shaped optical pulses from the subnanojoule to the submillijoule energy level with a measured long-term output energy stability of 0.2 percent rms. To our knowledge this represents the highest energy stability ever demonstrated for a millijoule-level laser system, either flashlamp pumped or diode pumped. In addition to the excellent stability and reproducibility, the regen output is very insensitive to the injected pulse energy and the temporal distortions due to the negative feedback are immeasurable. Four regenerative amplifiers equipped with this negative feedback system have operated flawlessly on OMEGA over the past two year period.

Paper Details

Date Published: 23 July 1999
PDF: 7 pages
Proc. SPIE 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, (23 July 1999); doi: 10.1117/12.354222
Show Author Affiliations
Andrei Babushkin, Univ. of Rochester (United States)
W. Bittle, Univ. of Rochester (United States)
S. A. Letzring, Los Alamos National Lab. (United States)
Mark D. Skeldon, Univ. of Rochester (United States)
Wolf D. Seka, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 3492:
Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion
W. Howard Lowdermilk, Editor(s)

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