LD抽运Cr^(4+):YAG被动调Q内腔式PbWO_4锁模拉曼激光器实验研究

Laser-Diode-Pumped Cr^(4+):YAG Passively Q-Switched Intracavity PbWO_4 Mode-Locked Raman Laser

采用激光二极管(LD)抽运Cr4+:YAG被动调Q内腔式PbWO4锁模拉曼激光器获得了稳定的、调制深度为100%的调Q锁模拉曼脉冲。抽运功率为6.3W时,获得的锁模拉曼激光输出功率为582mW,抽运光到一阶斯托克斯光的转换效率为9.24%,斜效率为10.6%,调Q脉冲重复频率为41.3kHz,脉宽为6ns,锁模脉冲重复频率为1.1GHz,锁模脉冲宽度小于207ps。

A laser-diode-pumped Cr^4＋：YAG passively Q-switched intracavity PbWO4 mode-locked Raman laser is demonstrated.Stable and Q-switched mode-locked laser output of modulation depth 100%is realized.A maximum average output power of 582 mW is obtained when the incident pump power is 6.3 W corresponding to an overall pump light-first-order Stokes conversion efficiency of 9.24%and a slope efficiency of 10.6%.The Q-switched pulse with repetition rate of 41.3 kHz and pulse width of 6 ns is obtained.The width of the mode-locked pulse is estimated to be less than 207 ps with 1.1 GHz the repetition rate of 1.1 GHz.