Author： Brignon A. Huignard J.-P.
Publisher： Society for Imaging Science and Technology
ISSN： 1943-3522
Source： Journal of Imaging Science and Technology, Vol.41, Iss.5, 1997-09, pp. : 474-481
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Abstract
Optically written gain gratings in inverted laser media are investigated both theoretically and experimentally. We present a transient analysis, valid in the nanosecond-pulsed regime, that permits calculation of the diffraction efficiency and profile of the gain grating within the medium for both transmission- and reflection-type gratings. Because of the laser amplification experienced by all interacting beams, greater-than-unity diffraction efficiency is achievable. Application to high-speed dynamic holography is demonstrated in flash-lamp-pumped Nd:YAG and compact diode-pumped Nd:YVO4 solid-state amplifiers.
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