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Proceedings Paper

Research and control of thermal effect in a helium gas-cooled multislab Nd:glass laser amplifier
Author(s): Yuqi Zhang; Jiangfeng Wang; Xinghua Lu; Wenfa Huang; Xuechun Li
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Paper Abstract

As the development of the laser-driven technology, the next generation of laser-driven device sets higher requirement for the repetition frequency. The higher repetition gives rise to thermal deposition, which induces thermo-optical effect, elasto-optical effect and bulk displacement. The thermal efficient management is an important approach to dissolve the thermal deposition. The quasi uniform distribution of heat medium is realized by helium cooling Nd:glass slab and the control of edge temperature. In the case, wavefront distortion and depolarization losses is obtained in experiment. Results said that both of them are improved greatly. At the same time, the distribution of temperature, stress and strain and stress birefringence in Nd:glass are analyzed by using finite element numerical simulation method. And the calculation results show that the wavefront distortion and depolarization losses match with the experimental results very well.

Paper Details

Date Published: 5 August 2015
PDF: 11 pages
Proc. SPIE 9621, 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications, 962103 (5 August 2015); doi: 10.1117/12.2192667
Show Author Affiliations
Yuqi Zhang, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Jiangfeng Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Xinghua Lu, Shanghai Institute of Optics and Fine Mechanics (China)
Wenfa Huang, Shanghai Institute of Optics and Fine Mechanics (China)
Xuechun Li, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 9621:
2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications
Jianqiang Zhu; Chunqing Gao, Editor(s)

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