标题：Diode-pumped Nd:Gd3Ga5O12-KTiOPO4green laser doubly passively Q-switched mode-locked by GaAs and Cr4+:YAG saturable absorbers
作者：Qiao, Junpeng ;Zhao, Jia ;Yang, Kejian ;Zhao, Shengzhi ;Li, Yufei ;Li, Guiqiu ;Li, Dechun ;Qiao, Wenchao ;Li, Tao ;Chu, Hongwei
作者机构：[Qiao, Junpeng ;Zhao, Jia ;Yang, Kejian ;Zhao, Shengzhi ;Li, Yufei ;Li, Guiqiu ;Li, Dechun ;Qiao, Wenchao ;Li, Tao ;Chu, Hongwei ] School of Informati 更多
来源：Japanese Journal of Applied Physics
摘要：By simultaneously employing GaAs and Cr4+:YAG saturable absorbers, a diode-pumped doubly passively Q-switched and mode-locked (DPQML) Nd:Gd3Ga5O12(Nd:GGG)/KTiOPO4(KTP) green laser has been presented. At the maximum incident pump power of 7.69W, the obtained average output power, the pulse duration of the Q-switched envelope, the mode-locked pulse width and the pulse repetition rate are 62mW, 16.8 ns, 352 ps, and 15.5 kHz, respectively, corresponding to a pulse energy of 4.2 μJ and a peak power of 0.25kW. In comparison with singly passively Q-switched and mode-locked (SP-QML) green laser with GaAs or Cr4+:YAG saturable absorbers, the DP-QML green laser can generate shorter pulse width, deeper modulation depth and higher peak power. The coupled equations for diode-pumped doubly passively QML Nd:GGG/ KTP green laser are given and the numerical simulations are in good agreement with the experimental results.
© 2015 The Japan Society of Applied Physics.