Stimulated Raman scattering of H2 in hollow-core photonics crystal fibers pumped by high-power narrow-linewidth fiber oscillators

被引：5
作者：
Cui, Yulong [1 ,2 ]
Tian, Xin [1 ,2 ]
Rao, Binyu [1 ,2 ]
Huang, Wei [1 ,2 ]
LI, Hao [1 ,2 ]
Pei, Wenxi [1 ,2 ]
Wang, Meng [1 ,2 ,3 ]
Chen, Zilun [1 ,2 ,3 ]
Wang, Zefeng [1 ,2 ,3 ]
机构：
[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Peoples R China
[2] Natl Univ Def Technol, Nanhu Laser Lab, Changsha 410073, Peoples R China
[3] State Key Lab Pulsed Power Laser Technol, Changsha 410073, Peoples R China
来源：
OPTICS EXPRESS | 2023年 / 31卷 / 05期
基金：
中国国家自然科学基金;
关键词：
LASER; EFFICIENT; BAND;
D O I：
10.1364/OE.479227
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The stimulated Raman scattering (SRS) process in gas-filled hollow-core fiber is mostly used to realize the wavelength conversion, which has the potential to produce narrow-linewidth and high-power fiber laser output. However, limited by the coupling technology, the current research is still at a few watts power level. Here, through the fusion splicing between the end-cap and the hollow-core photonics crystal fiber, several hundred watts pump power can be coupled into the hollow core. Homemade narrow-linewidth continuous wave (CW) fiber oscillators with different 3 dB linewidths are used as the pump sources, then the influences of the pump linewidth and the hollow-core fiber length are studied experimentally and theoretically. As the hollow-core fiber length is 5 m the H-2 pressure is 30 bar, 109 W 1(st) Raman power is obtained with a Raman conversion efficiency 48.5%. This study is significant for the development of high-power gas SRS in hollow-core fibers. (C) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用
收藏
页码：8441 / 8452
页数：12
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