A Q-switched erbium-doped fiber laser based on ZrS2 as a saturable absorber  

作　　者：Ping Hu Yan Huang Fangfang Liu Ying Liu Liping Guo Xiaolu Ge Xiaojuan Liu 胡平;黄燕;刘芳芳;刘英;郭立萍;葛筱璐;刘晓娟(School of Physics and Optoelectronic Engineering, Shandong University of Technology)

机构地区：[1]School of Physics and Optoelectronic Engineering, Shandong University of Technology

出　　处：《Chinese Optics Letters》2019年第8期21-25,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 11304184);partially supported by the National Natural Science Foundation of China (No. 11704226);the Natural Science Foundation of Shandong Province (No. ZR2017MA051)

摘　　要：A passively Q-switched erbium-doped fiber(EDF) laser is proposed and demonstrated utilizing a zirconium disulfide(ZrS2)-based saturable absorber(SA). ZrS2 nanosheets are prepared, whose modulation depth,saturation intensity, and nonsaturable absorbance are measured to be 14.7%, 0.34 MW/cm^2, and 17.4%, respectively. Then, a Q-switched EDF laser is implemented by the ZrS2-SA. The pulse repetition rate varies from 40.65 to 87.1 k Hz when the pump power changes from 55 to 345 mW. The shortest pulse width is 1.49 μs with pulse energy of 33.5 nJ. As far as we know, this is the shortest pulse width obtained by a ZrS2-SA so far.A passively Q-switched erbium-doped fiber（EDF） laser is proposed and demonstrated utilizing a zirconium disulfide（ZrS2）-based saturable absorber（SA）. ZrS2 nanosheets are prepared, whose modulation depth,saturation intensity, and nonsaturable absorbance are measured to be 14.7%, 0.34 MW/cm2, and 17.4%, respectively. Then, a Q-switched EDF laser is implemented by the ZrS2-SA. The pulse repetition rate varies from 40.65 to 87.1 k Hz when the pump power changes from 55 to 345 mW. The shortest pulse width is 1.49 μs with pulse energy of 33.5 nJ. As far as we know, this is the shortest pulse width obtained by a ZrS2-SA so far.

关 键 词：EDF ZrS2 SA 

分 类 号：O4[理学—物理]