Volume 11, Issue 2 (Iranian Journal of Physics Research, Summer 2011)                   IJPR 2011, 11(2): 117-128 | Back to browse issues page

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Farahbod A, Tahsildaran Fard F. Pulse propagation in a two-pass optical amplifier with arbitrary laser beams overlap. IJPR. 2011; 11 (2) :117-128
URL: http://ijpr.iut.ac.ir/article-1-728-en.html
Nuclear Sciences and Technology Research Institute , afarahbod@aeoi.org.ir
Abstract:   (12910 Views)
An analytical model for two-pass optical amplifier with arbitrary beams overlap has been developed which generalized the classical theory of Frantz-Nodvik for single pass amplifier. The effect of counterpropagating beams on gain and output energy fluence included in the model. Moreover, the appropriate limiting relations for two special cases of weak input signal and saturation state of the amplifier gain have been derived. The results indicate that for complete beams overlap, the gain and output energy have the least values. The model predictions are consistent with experimental observations and exact analytical model for two-pass amplifier when beam propagation paths are coincided.
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Type of Study: Research | Subject: General

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