Numerical simulation and experimental study of thermal-induced-depolarization in 2 m Cr,Tm,Ho:YAG laser

Li Zhe; Jiang Hai-He; Wang Li; Yang Jing-Wei; Wu Xian-You

doi:10.7498/aps.61.044205

Abstract

The theory of thermal-induced-depolarization is analyzed, the distribution of depolarization is numerically simulated, and the result is verified by the polarized light interferometry. The experimental result is coincident with the numerical simulation, which shows that the distribution of depolarization in the cross section of Cr,Tm,Ho:YAG is crisscross, and increases with the pump energy increasing. The direction of the worst depolarization is 45 with respect to the polarization direction of the polarizer. According to the numerical simulation, we employ a /4-plate to compensate the depolarization of a high-energy Cr,Tm,Ho:YAG laser. The pulse energy increases by 24% after compensation.

Keywords:

Authors and contacts

1.
Anhui institute of optics and fine mechanics, Chinese Academy of Sciences, Hefei 230031, China
Funds: Project supported by the National Natural Science Foundation of China(Grant No. 90922003) and the Innovation Key Program of Chinese Academy of Sciences(Grant No. KJCX2-EW-NO7).

References

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Cited By

[1]	Bai Y X, Yu J, Petzar M, Chen S, Trieu B, Lee H, Singh U 2009 CLEO OSA Technical Digest(CD) CWH5
[2]	Li C, Shen D Y, Song J 2000 SPIE OSAKA, JAPAN Nov 01-05, 1999 274
[3]	Kurtev S Z, Denchev O E, Savov S D 1993 Appl. Opt. 32 278
[4]	Hans J E, Andreas H, Ralf M, Andreas S 1993 Appl.Phys. 26 1884
[5]	Sun Z P, Li R N, Bi Y, Bo Y, Yang X D, Chen Y H, Guo L, Hou W, Zhang H B, Cui D F, Xu Z Y 2005 Chin. Phys. Lett. 22 339
[6]	Ou Q F, Chen J G, Feng G Y 2004 Chinese J. Lasers 31 797(in Chinese) [欧群飞, 陈建国, 冯国英 2004 中国激光 31 797]
[7]	Zhou L Z, Zhang S S, Zhang S D 1980 Acta Phys. Sin. 29 594 (in Chinese) [周良智, 张珊珊, 张守都 1980 物理学报 29 594]
[8]	Rice D K, Koechner W 1970 IEEE Journal of Quantum Electronics QE-6 557
[9]	Cen Z F, Li X T 2010 Acta Phys. Sin. 59 5785(in Chinese) [岑兆丰, 李晓彤 2010 物理学报 59 5785]
[10]	Clarkson W A, Felgate N S, Hanna D C 1999 Opt. Lett. 24 820

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Vol. 61, Issue 4 - 2012-02-20

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