H2 Stimulated Raman Scattering in a Multi-pass Cell with a Herriott Configuration

Stimulated raman scattering （SRS） is an effective method for expanding the spectral range of high power lasers, especially in the regime of near IR and middle IR. We report the SRS of high pressure H2 with a multiple-pass cell configuration. The SRS with the multiple-pass cell configuration is found...

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Bibliographic Details
Published in中国物理快报：英文版 no. 11; pp. 67 - 71
Main Author 蔡向龙 周灿华 周冬建 刘金波 郭敬为 贵林
Format Journal Article
LanguageEnglish
Published 01.11.2015
Subjects
SRS
光谱范围
单元配置
受激拉曼散射
转换效率
通道细胞
高功率激光器
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/32/11/114207

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Summary:Stimulated raman scattering （SRS） is an effective method for expanding the spectral range of high power lasers, especially in the regime of near IR and middle IR. We report the SRS of high pressure H2 with a multiple-pass cell configuration. The SRS with the multiple-pass cell configuration is found to be very efficient for reduction of threshold of the first Stokes （S1）. Due to the coherent SRS （CSRS） process, the multiple-pass cell configuration is more effective for reduction of the threshold for the second Stokes （S2） SRS and for increasing the conversion efficiency of S2. This contributes to the relatively low conversion efficiency of S1 for the multiple-pass cell configuration. Multiple-pass cell SRS is also found to be very effective for improving the beam quality and the stability of S1.
Bibliography:CAI Xiang-Long, ZHOU Can-Hua, ZHOU Dong-Jian, LIU Jin-Bo, GUO Jing-Wei, GUI Lin（ 1Key Laboratory of Chemical Lasers, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 2School of Dental Clinic, Dalian Medical University, Dalian 116044）
Stimulated raman scattering （SRS） is an effective method for expanding the spectral range of high power lasers, especially in the regime of near IR and middle IR. We report the SRS of high pressure H2 with a multiple-pass cell configuration. The SRS with the multiple-pass cell configuration is found to be very efficient for reduction of threshold of the first Stokes （S1）. Due to the coherent SRS （CSRS） process, the multiple-pass cell configuration is more effective for reduction of the threshold for the second Stokes （S2） SRS and for increasing the conversion efficiency of S2. This contributes to the relatively low conversion efficiency of S1 for the multiple-pass cell configuration. Multiple-pass cell SRS is also found to be very effective for improving the beam quality and the stability of S1.
11-1959/O4
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/11/114207