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© 2009 Chinese Optics Letters
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   Home  List of Issues    Issue 01 , Vol. 01 , 2003    Article Abstract

Theoretical study on the laser gain of a multi-stage dye laser amplifier
Xianglei Kong1;2, Xianyi Zhang1;2, Xiaolin Luo1;2, Shudong Zhang1;2, Wei Zhang1, and Haiyang Li1;2
Chinese Optics Letters , Vol.01 , Issue 01 , PP.34-34(2003)

Keywords(OCIS Code)
140.3280 (laser materials), 140.2050 (dye lasers).

Abstract
Theoretical studies on laser gain of a multi-stage dye laser amplifier are presented in this paper. The results show that the influences of amplified spontaneous emission (ASE) and nonlinear absorption of excitedstate on the gain are different for different input laser energies and gains. A threshold input intensity exists for a specific system. If the input intensity is higher than the threshold, the nonlinear absorption of excited-state will be the main cause for gain decrease. Otherwise, the ASE is the main cause. A new scheme is proposed to calculate the gain of the amplifier by the comparison of the input intensity with the effective saturation intensity and the choice of the calculation gain method.

©2003-2007 Chinese Optics Letters

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Manuscript Accepted:2002-5-8
Revised Manuscript:
Published :


Column:lasers and laser optics
Note: This work was supported by the National Natural Science Foundation of China under Grant No. 20073042. X. Kong's e-mail address is kongxl@aiofm.ac.cn. H. Li's e-mail address is hli@aiofm.ac.cn.

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