Theoretical and experimental investigation of an efficient pulsed barium tungstate Raman amplifier at 1180 nm

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• 作者：Cong Wang ; Zhenhua Cong ; Zhaojun Liu ; Xingyu Zhang ; Qingpu Wang ; Wei Wei ; Lei Li ; Yuangeng Zhang ; Weitao Wang ; Zhenguo Wu ; Xiaohan Chen ; Ping Li ; Huaijin Zhang
• 关键词：Pulsed Raman amplifier ; BaWO4 crystal ; Coupled radiation transfer equations ; Stimulated Raman scattering
• 刊名：Optics Communications
• 出版年：15 February, 2014
• 年：2014
• 卷：313
• 期：Complete
• 页码：80-84
• 全文大小：1318 K

文摘

An efficient pulsed Raman amplifier at 1180 nm is studied by taking advantage of the barium tungstate (BaWO₄) crystal. The Raman amplification ratios, the amplified Raman laser energies, and the Raman conversion efficiencies are investigated theoretically and experimentally. In the case of 200 mJ pumping pulse energy at 1064 nm and 8.0 mJ Raman signal energy, the highest amplified Raman energy obtained is 71.5 mJ and serious depletion of the pumping laser pulse is detected. The coupled radiation transfer equations are used to predict the performance of Raman amplifier. The theoretical results are in agreement with the experimental ones on the whole.