A kind of multiwavelength erbium-doped fiber laser based on Lyot filter  

作　　者：周哲海 吴婧仪 闵昆龙 赵爽 李慧宇 Zhehai Zhou;Jingyi Wu;Kunlong Min;Shuang Zhao;Huiyu Li(Beijing Laboratory of Optical Fiber Sensing and System,Beijing Information Science&Technology University,Beijing 100192,China;Beijing Aerospace Measurement&Control Technology Co.,Ltd.,Beijing 100041,China)

机构地区：[1]Beijing Laboratory of Optical Fiber Sensing and System,Beijing Information Science&Technology University,Beijing 100192,China [2]Beijing Aerospace Measurement&Control Technology Co.,Ltd.,Beijing 100041,China

出　　处：《Chinese Physics B》2023年第3期252-257,共6页中国物理B（英文版）

基　　金：Beijing Great Wall Scholars Program(Grant No.CIT&TCD20190323);Beijing Youth Talent Support Program(Grant No.Z2019042);the National Natural Science Foundation of China(Grant No.61875237).

摘　　要：A multiwavelength tunable ring-cavity erbium-doped fiber laser(EDFL)based on a Lyot filter was presented.For the proposed Lyot filter,a comb filter consisting of an EDF-polarization-maintaining fiber(EDF-PMF),a polarization controller(PC),and a circulator with four ports was used to suppress the mode competition.The light transmission direction was guaranteed by the circulator.For the proposed fiber laser,tunable single,dual,triple,quadruple,quintuple,sextuple,and septuple wavelengths were realized.A single-wavelength laser output with an optical signal-to-noise ratio(SNR)of up to30.56 dB was realized,and a tuning range of 1590.54 nm to 1599.54 nm was achieved by tuning the PC.The stability of the single,dual,triple,and quadruple-wavelength center power fluctuations was less than 0.05 dB,0.98 dB,5.07 dB,and7.71 dB respectively.When the laser was operated in the multiwavelength condition,the SNR was more than 20.97 dB.The proposed erbium-doped fiber laser is suitable for fiber-sensing system applications.

关 键 词：multiwavelength erbium-doped fiber laser Lyot filter polarization-maintaining fiber CIRCULATOR 

分 类 号：TN713[电子电信—电路与系统] TN248