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Proceedings Paper

The amplification of stimulated Raman scattering in H2 pumped by a Q-switched Nd:YAG laser
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Paper Abstract

The experimental study of the amplification of stimulated Raman scattering (SRS) in high purity H2 gas was demonstrated employing a Q-switched Nd:YAG laser at 1064 nm as the pump source. A part of the 1064 nm pump light (20% in energy) was focused into the first H2 gas cell to generate the backward first Raman Stokes light (BS1), which is taken as the Raman seed light. The BS1 seed light combined to the residual pump light were focused into the second H2 gas cell to get the amplification of the S1 1900 nm infrared Raman light. In this study, the maximum quantum conversion efficiency of the S1 light was estimated to be 76%. Under the condition of the same pump energy, especially for the low pump energy (lower than 40 mJ), the quantum conversion efficiency of the S1 light with the Raman seed light was significantly increased comparing to the single focus geometry (without the Raman seed light).

Paper Details

Date Published: 3 February 2015
PDF: 6 pages
Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92552G (3 February 2015); doi: 10.1117/12.2065340
Show Author Affiliations
Canhua Zhou, Dalian Institute of Chemical Physics (China)
Dongjian Zhou, Dalian Institute of Chemical Physics (China)
Xianglong Cai, Dalian Institute of Chemical Physics (China)
Hui Li, Dalian Institute of Chemical Physics (China)
Zhe Shi, Dalian Institute of Chemical Physics (China)
Shu Hu, Dalian Institute of Chemical Physics (China)
Jingwei Guo, Dalian Institute of Chemical Physics (China)
Yuqi Jin, Dalian Institute of Chemical Physics (China)


Published in SPIE Proceedings Vol. 9255:
XX International Symposium on High-Power Laser Systems and Applications 2014
Chun Tang; Shu Chen; Xiaolin Tang, Editor(s)

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