High OSNR and simple configuration dual-wavelength fiber laser with wide tunability in S＋C＋L band  

作　　者：冯亭 王明明 丁东亮 X.Steve Yao 

机构地区：[1]Photonics Information Innovation Center,Hebei Key Lab of Optic-Electronic Information and Materials,College of Physics Science and Technology,Hebei University [2]General Photonics Corporation

出　　处：《Chinese Optics Letters》2017年第11期15-18,共4页中国光学快报（英文版）

基　　金：supported by the Natural Science Foundation of Hebei Province(No.F2016201023);the Technology Foundation for Selected Overseas Chinese Scholar of MOHRSS(No.CG2015003006);the Advanced Talents Program of Hebei Educational Committee(No.GCC2014020);the International Science and Technology Cooperation Program of China(No.2014DFA12930)

摘　　要：A simple configuration dual-wavelength fiber laser,by combining the first-order Brillouin laser and the residual pump laser,is proposed and experimentally demonstrated.A 1 km long single-mode fiber is used as the stimulated Brillouin scattering gain medium pumped by a narrow linewidth tunable laser source（TLS）.Through simply adjusting the TLS output power,power-equalized dual-wavelength lasing can be achieved with a high optical signal to noise ratio（OSNR） of 〉80 d B.With the good tunability of the TLS,the dual-wavelength fiber laser has a tunable range of -130 nm,and simultaneously the beat frequency of the two lasing wavelengths can be tuned from 10.1875 to 11.0815 GHz with the tunable range of 0.8940 GHz.The high stability of the dualwavelength operation is experimentally verified by the measured beat frequency fluctuation of ≤6 MHz in 1 h and power fluctuation of ≤0.03 d B in 2 h.The temporal characteristics of the fiber laser are also investigated experimentally.The fiber laser will find good applications in fiber sensing and microwave photonics areas.A simple configuration dual-wavelength fiber laser,by combining the first-order Brillouin laser and the residual pump laser,is proposed and experimentally demonstrated.A 1 km long single-mode fiber is used as the stimulated Brillouin scattering gain medium pumped by a narrow linewidth tunable laser source（TLS）.Through simply adjusting the TLS output power,power-equalized dual-wavelength lasing can be achieved with a high optical signal to noise ratio（OSNR） of 〉80 d B.With the good tunability of the TLS,the dual-wavelength fiber laser has a tunable range of -130 nm,and simultaneously the beat frequency of the two lasing wavelengths can be tuned from 10.1875 to 11.0815 GHz with the tunable range of 0.8940 GHz.The high stability of the dualwavelength operation is experimentally verified by the measured beat frequency fluctuation of ≤6 MHz in 1 h and power fluctuation of ≤0.03 d B in 2 h.The temporal characteristics of the fiber laser are also investigated experimentally.The fiber laser will find good applications in fiber sensing and microwave photonics areas.

关 键 词：tunable LASING BRILLOUIN FLUCTUATION pumped OSNR verified microwave PHOTONICS simply 

分 类 号：TN248[电子电信—物理电子学]