Self-starting simple structured dual-wavelength mode-locked erbium-doped fiber laser using a transmission-type semiconductor saturable absorber  

作　　者：Junkai Shi Weihu Zhou 石俊凯;周维虎(Laboratory of Laser Measurement Technology,Academy of Opto-Electronics,Chinese Academy of Sciences,Beijing 100094,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]Laboratory of Laser Measurement Technology,Academy of Opto-Electronics,Chinese Academy of Sciences,Beijing 100094,China [2]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Optics Letters》2018年第3期40-43,共4页中国光学快报(英文版)

基　　金：supported by the National Natural Science Foundation of China(NSFC)(Nos.61475162and 61377103);the Key Project of Bureau of International Co-operation,Chinese Academy of Sciences(No.181811KYSB20160029);the Key Research Project of Bureau of Frontier Sciences and Education,Chinese Academy of Sciences(No.QYZDY-SSW-JSC008)

摘　　要：A self-starting simple structured dual-wavelength passively mode-locked(ML)erbium-doped fiber(EDF)laser is proposed in this Letter.An all-fiber ring cavity is adopted and a transmission-type semiconductor saturable absorber is used as modelocker.In this laser,there are two gain humps located at the 1530 nm region and the 1550 nm region,respectively.Along with the length of EDF increasing,the intensity of the hump at 1530 nm region is gradually suppressed because of the re-absorption of emission by the ground state.With the proper length of EDF,the gain intensities of two regions are very close.When the pump power is above the ML threshold,the self-starting dual-wavelength ML operation is achieved easily without manual adjustment.The two spectral peaks with close intensities are located at 1532 and 1552 nm,respectively.The effect of intracavity dispersion on the output spectrum is also experimentally demonstrated.

分 类 号：TN248[电子电信—物理电子学]