An All Fiber 1.94µm Nanosecond Pulse Laser Amplified by Highly Tm^(3+)-Doped Silicon Fibers  

作　　者：ZHOU Ren-Lai REN Jian-Cun YANG Chao JU You-Lun WANG Yue-Zhu 周仁来;任建存;杨超;鞠有伦;王月珠(National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology,Harbin 150080;Naval Aeronautical&Astronautical University,Yantai 264000)

机构地区：[1]National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology,Harbin 150080 [2]Naval Aeronautical&Astronautical University,Yantai 264000

出　　处：《Chinese Physics Letters》2013年第5期78-81,共4页中国物理快报（英文版）

基　　金：the National Natural Science Foundation of China under Grant Nos 60878011 and 61078008;the Program for New Century Excellent Talents in University under Grant No NCET-10-0067.

摘　　要：We present an all-fiber 1.94μm nanosecond pulse laser in master oscillation-power amplifier configuration.A dual-FBGs gain-switched Tm^(3+)-doped fiber laser is built and is used as the seed laser.The output characteristics of the amplifier are studied at different pulse repetition rates,and the maximum output energy of 500μJ is achieved under incident pump power of 39 W.The emitting spectra are checked at 5 and 10 kHz,and no obvious nonlinear effects are observed in the spectrum of the amplified laser.The beam quality factor is M^(2)=2.1±0.03 measured by the traveling knife-edge method,and the laser beam spot is also monitored by an infrared vidicon camera.

关 键 词：AMPLIFIER FIBER SWITCHED 

分 类 号：TN2[电子电信—物理电子学]