文献类型：期刊文献

英文题名：Switchable multi-wavelength actively Q-switched erbium-doped fiber laser based on nonlinear polarization rotation and Sagnac filter

作者：Peng, Yaomei Peng, Jianxin Pan, Honggang Zhang, Ailing Liu, Zhanzhi Chen, Zhipan Zhang, Bo Liu, Xueting Cao, Chuanbo Du, Pu

第一作者：Peng, Yaomei

通信作者：Pan, HG[1]

机构：[1]Tianjin Univ Technol, Engn Res Ctr Optoelect Devices & Commun Technol, Tianjin Key Lab Film Elect & Commun Devices, Sch Integrated Circuit Sci & Engn,Minist Educ, Tianjin 300384, Peoples R China;[2]Guizhou Inst Technol, Sch Civil Engn, Rd Bridge & River Crossing Engn, Guiyang, Peoples R China;[3]Tianjin Univ Technol, Sch Elect Engn & Automat, Tianjin 300384, Peoples R China

第一机构：Tianjin Univ Technol, Engn Res Ctr Optoelect Devices & Commun Technol, Tianjin Key Lab Film Elect & Commun Devices, Sch Integrated Circuit Sci & Engn,Minist Educ, Tianjin 300384, Peoples R China

通信机构：corresponding author), Tianjin Univ Technol, Engn Res Ctr Optoelect Devices & Commun Technol, Tianjin Key Lab Film Elect & Commun Devices, Sch Integrated Circuit Sci & Engn,Minist Educ, Tianjin 300384, Peoples R China.

年份：2023

卷号：284

外文期刊名：OPTIK

收录：;EI(收录号：20232014092641);Scopus(收录号：2-s2.0-85159162292);WOS:【SCI-EXPANDED(收录号:WOS:001001755600001)】；

基金：Acknowledgement The authors wish to express their gratitude to Natural Science Foundation of Tianjin City, China (17JCYBJC16600) for their funding to support in this work.

语种：英文

外文关键词：Multi-wavelength; Switchable; EOM; Actively Q-switched; Sagnac filter; NPR

摘要：This letter describes a switchable multi-wavelength actively Q-switched erbium-doped fiber (EDF) ring laser based on nonlinear polarization rotation (NPR) structure with Sagnac filter and electro-optic modulator (EOM). The intensity-dependent loss (IDL) generated by the constructed NPR structure can suppress the mode competition caused by EDF, combined with a comb filter Sagnac loop which composed of only 2-m-long polarization maintaining fiber (PMF), the constructed laser generates nine-wavelengths laser output with a constant wavelength interval of 3 nm. When the NPR structure is removed, the constructed laser generates quadruple-wavelengths laser output with 3 nm constant wavelength interval. It is proved that the effect of the NPR can suppress mode competition to achieve multi-wavelength laser output. In the laser with the constructed NPR structure, the nine-wavelengths laser output has a maximum wavelength shift of 0.21 nm and a maximum power fluctuation of 0.69 dB, while when the NPR structure is removed from the constructed laser, for the quadruple-wavelengths laser output, the maximum wavelength shift is 0.16 nm and the maximum power fluctuation is 0.29 dB. When the constructed laser with or without NPR structure, the minimum Q-switched pulse width and maximum average output power are 1.42 mu s, 1.24 mu s and 3.2 mu W, 10.2 mu W, respectively.