【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。更多还原

【Abstract】 The cw pumped self-staring,widely tunable ps pulses Yb³⁺-doped double-clad fiber laser is experimentally studied.In experiments,the 20 m single mode Yb³⁺-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.更多还原