自启动、宽调谐的ps掺Yb双包层光纤激光器  

Self-starting Widely Tunable ps Pulses Generation from Yb-doped Double-clad Fiber Laser

作　　者：胡姝玲[1] 杨广荣[2] 高春清[1] 吕福云[3] 

机构地区：[1]北京理工大学光电工程系 [2]中国人民解放军军事交通学院,天津300161 [3]南开大学物理科学院,天津300071

出　　处：《光电子．激光》2005年第9期1029-1031,共3页Journal of Optoelectronics·Laser

基　　金：国家重点基金资助项目(60137010);国家自然科学基金资助项目(69977012);天津市自然科学基金资助项目(99380101)

摘　　要：对连续泵浦的自启动、宽调谐的ps脉冲掺Yb3+双包层光纤激光器进行了实验研究。采用20 m单模掺Yb3+双包层光纤作为增益介质,利用77 MHz射频信号的声光调制器(AOM)作为频移器以及体光栅构成外腔,得到了重复频率为1 GHz、平均功率为56.3 mW以及脉宽小于60 ps的脉冲,激光器的调谐范围超过40 nm。The cw pumped self-staring, widely tunable ps pulses Yb^3＋-doped double-clad fiber laser is experimentally studied. In experiments, the 20 m single mode Yb^3＋-doped double-clad fiber worked as gain medium. And we used 77 MHz RF signal AOM and a grating which formed external cavity to provide feedback, and made the laser linewidth narrower. We obtained 1 GHz repetition rate with highest output power 56.3 mW pulses,whose width was smaller than 60 ps. Also,the fiber laser was tunable over 40 nm from 1 072.9 nm to 1 113.7 nm.

关 键 词：频移反馈 自启动 光纤激光器 调谐 

分 类 号：TN248.1[电子电信—物理电子学]