All-Fiber Gain-Switched Thulium-Doped Fiber Laser Pumped by 1.558 μm Laser  

作　　者：ZHOU Ren-Lai ZHAO Jie YUANG-Chi CHEN Zhao-Yu JU You-Lun WANG Yue-Zhu 周仁来;赵杰;袁驰;陈兆宇;鞠有伦;王月珠(National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology,Harbin 150080)

机构地区：[1]National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology,Harbin 150080

出　　处：《Chinese Physics Letters》2012年第6期129-132,共4页中国物理快报（英文版）

基　　金：Supported by National Natural Science Foundation of China(60878011,61078008);the Program for New Century Excellent Talents in University(NCET-10-0067)。

摘　　要：We present an all-fiber gain-switched thulium (Tm) doped fiber laser operating in the eye-safe region at 1940nm.The fibre Bragg gratings (FBGs) inscribed by phase mask technology are used as cavity mirrors,and the transmission spectra of FBGs are also measured.The output cbaracteristics are studied at pulse repetition frequene cies of 10,20 and 30kHz,and the maximum output powers of 28.9,67.0 and 71.0mW are achieved under incident pump powers of 122,247and 250mW.The narrowest pulse width of29ns and shortest pulse built-time of 140 ns are obtained at 10 kHz.The relation between pulse built-time and cavity length are discussed.

关 键 词：fiber PULSE PUMP 

分 类 号：TN2[电子电信—物理电子学]