Weak feedback assisted random fiber laser from 45°-tilted fiber Bragg grating

被引：17
作者：
Hu, Zhijia [1 ,2 ,3 ]
Ma, Rui [3 ,4 ]
Zhang, Xiaojuan [3 ]
Sun, Zhongyuan [3 ]
Liu, Xin [3 ]
Liu, Jun [3 ]
Xie, Kang [1 ]
Zhang, Lin [3 ]
机构：
[1] Hefei Univ Technol, Sch Instrument Sci & Optoelect Engn, Hefei 230009, Anhui, Peoples R China
[2] Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Mianyang 621000, Sichuan, Peoples R China
[3] Aston Univ, Aston Inst Photon Technol, Birmingham B4 7ET, W Midlands, England
[4] Univ Elect Sci & Technol China, Educ Minist China, Fiber Opt Res Ctr, Key Lab Opt Fiber Sensing & Commun, Chengdu 611731, Sichuan, Peoples R China
来源：
OPTICS EXPRESS | 2019年 / 27卷 / 03期
基金：
中国博士后科学基金; 中国国家自然科学基金; 欧盟地平线“2020”;
关键词：
ER-DOPED FIBER; OPTICAL-FIBER; EFFICIENCY;
D O I：
10.1364/OE.27.003255
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have demonstrated the realization of a high-polarization random fiber laser (RFL) output based on the hybrid Raman and Erbium gain with the tailored effect provided by a 45 degrees-tilted fiber Bragg grating (45 degrees-TFBG), revealing an improvement in the polarization extinction ratio (PER) and achieving a PER of similar to 15.3 dB. The hybrid RFL system incorporating the 45 degrees-TFBG has been systematically characterized. The random lasing wavelength can be fixed under the extremely weak feedback effect of the 45 degrees-TFBG with reflectivity of 0.09%. In addition, numerical simulation has verified that the weak feedback can boost the random lasing emission with fixed wavelength using a power balance model, which is in good accordance with the experiment results. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：3255 / 3263
页数：9
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