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Proceedings Paper

Gain saturation effects in BBO parametric amplifier
Author(s): W. Hogervorst; N. Kondratyuk; A. A. Shagov; V. N. Belyi
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Paper Abstract

In the present work the gain saturation effects in type-I BBO optical parametric amplifier (OPA) pumped by the 3rd harmonic of multi-mode Nd:YAG laser are investigated. The OPA gain was measured as a function of input idler energy at 1064 nm with a constant pump energy at 355 nm and a beam divergence 0,3 mrad. In the 9 mm BBO crystal at pump intensity approximately 68 MW.cm2 and input idler intensity approximately 18 MW.cm2 the efficiency of energy extraction in the saturated gain regime approximately 31% was obtained. The ways to increase the efficiency of energy extraction in the two-crystal OPA configuration are discussed.

Paper Details

Date Published: 23 March 2001
PDF: 4 pages
Proc. SPIE 4350, Laser Optics 2000: Solid State Lasers, (23 March 2001); doi: 10.1117/12.420958
Show Author Affiliations
W. Hogervorst, Vrije Univ. (Netherlands)
N. Kondratyuk, SC Solar LS (Belarus)
A. A. Shagov, SC Solar LS (Belarus)
V. N. Belyi, Institute of Physics (Belarus)

Published in SPIE Proceedings Vol. 4350:
Laser Optics 2000: Solid State Lasers
Vladimir I. Ustugov, Editor(s)

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