Multi-pass optical system for a pump laser
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United States of America Patent
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Mar 4, 2014
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N/A
app pub date -
Jan 24, 2012
filing date -
Nov 24, 2009
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Abstract
The various laser architectures described herein provide increased gain of optical energy as well as compensation of optical phase distortions in a thin disk gain medium. An optical amplifier presented herein provides for scalable high energy extraction and gains based on a number of passes of the signal beam through a gain medium. Multiple, spatially separate, optical paths may also be passed through the same gain region to provide gain clearing by splitting off a small percentage of an output pulse and sending it back through the amplifier along a slightly different path. By clearing out the residual gain, uniform signal amplitudes can be obtained.
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