Switchable single-and dual-wavelength femtosecond mode-locked Er-doped fiber laser based on carboxyl-functionalized graphene oxide saturable absorber  

作　　者：Qimeng Lin Li Yan Yuanqi Song Xuzhuo Jia Xiaoqiang Feng Lei Hou Jintao Bai 林启蒙;闫丽;宋园起;贾谞卓;冯晓强;侯磊;白晋涛(State Key Laboratory of Energy Photon-technology in Western China,Shaanxi Engineering Technology Research Center for Solid State Lasers and Application,Northwest University,Xi’an 710069,China;International Collaborative Center on Photoelectric Technology and Nano Functional Materials,Provincial Key Laboratory of Photo-electronic Technology,Northwest University,Xi’an 710069,China;Institute of Photonics&Photon-technology,Northwest University,Xi’an 710069,China)

机构地区：[1]State Key Laboratory of Energy Photon-technology in Western China,Shaanxi Engineering Technology Research Center for Solid State Lasers and Application,Northwest University,Xi’an 710069,China [2]International Collaborative Center on Photoelectric Technology and Nano Functional Materials,Provincial Key Laboratory of Photo-electronic Technology,Northwest University,Xi’an 710069,China [3]Institute of Photonics&Photon-technology,Northwest University,Xi’an 710069,China

出　　处：《Chinese Optics Letters》2021年第11期66-71,共6页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(No.11804276);the Natural Science Foundation of Shaanxi,China(No.2019JQ-524);the Open Fund of State Key Laboratory of Transient Optics Photonics(No.SKLST201808);the Scientific Research Program Funded by Shaanxi Provincial Education Department(No.17JS122);the Open Fund of State Key Laboratory of Pulsed Power Laser Technology(No.SKL 2018KF01)。

摘　　要：In this Letter, we demonstrated the switchable single-and dual-wavelength femtosecond soliton generation in single-mode Er-doped fiber lasers with the usage of carboxyl-functionalized graphene oxide(GO-COOH) saturable absorbers(SAs) for the first time, to the best of our knowledge. The fiber laser generated a stable single-wavelength conventional soliton at 1560.1 nm with a pulse duration of 548.1 fs. The dual-wavelength solitons centered at 1531.9 nm and 1555.2 nm with a spacing of approximately 23 nm can be obtained by adjusting the pump power of the cavity. Our experimental results indicated the GO-COOH has great potential to be used in ultrafast fiber lasers as broadband SAs.

关 键 词：fiber laser MODE-LOCKING DUAL-WAVELENGTH femtosecond soliton 

分 类 号：TN248[电子电信—物理电子学]