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

Zhe Li | Zendy; Haihe Jiang | Zendy; Li Wang | Zendy; Yang Jingwei | Zendy; 吴先友 Wu Xianyou | Zendy

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

Author(s) -

Zhe Li,

Haihe Jiang,

Li Wang,

Yang Jingwei,

吴先友 Wu Xianyou

Publication year - 2012

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.61.044205

Subject(s) - depolarization , polarizer , optics , materials science , polarization (electrochemistry) , laser , computer simulation , thermal , atomic physics , physics , mechanics , birefringence , medicine , chemistry , endocrinology , meteorology

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.

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