Stable and High OSNR Compound Linear-Cavity Single-Longitudinal-Mode Erbium-Doped Silica Fiber Laser Based on an Asymmetric Four-Cavity Structure  

作　　者：FENG Ting YAN Feng-Ping LI Qi PENG Wan-Jing FENG Su-Chun WEN Xiao-Dong LIU Peng TAN Si-Yu 冯亭;延凤平;李琦;彭万敬;冯素春;温晓东;刘鹏;谭思宇(Key Lab of All Optical Network and Advanced Telecommunication Network of Ministry of Education,Institute of Lightwave Technology,Beijing Jiaotong University,Beijing 100044;Department of Physics,Xingtai College,Xingtai 054001)

机构地区：[1]Key Lab of All Optical Network and Advanced Telecommunication Network of Ministry of Education,Institute of Lightwave Technology,Beijing Jiaotong University,Beijing 100044 [2]Department of Physics,Xingtai College,Xingtai 054001

出　　处：《Chinese Physics Letters》2012年第10期54-57,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(61077069,61107094);the Fundamental Research Funds for the Central Universities(2011YJS202,2011JBM001)。

摘　　要：We propose a stable and high optical signal-to-noise ratio(OSNR)compound linear-cavity single-longitudinal-mode(SLM)erbium-doped silica fiber laser.It consists of three uniform fiber Bragg gratings(FBGs)and two fiber couplers to form a simple asymmetric four-cavity structure to select the longitudinal mode.The stable SLM operation at the wavelength of 1544.053 nm with a 3 dB bandwidth of 0.014 nm and an OSNR of~60 dB was verified experimentally.Under laboratory conditions,a power fluctuation performance of less than 0.05 dB for 5 h and wavelength variation of less than 0.01 nm for about 150 min is demonstrated.Finally,the characteristic of laser output power as a function of pump power is investigated.The proposed system provides a simple and cost-effective approach to realize a stable SLM fiber laser.

关 键 词：OSNR fiber ERBIUM 

分 类 号：TN2[电子电信—物理电子学]