Electro-optically Q-switched 946 nm laser of a composite Nd:YAG crystal  

作　　者：黄晶 胡秀寒 陈卫标 

机构地区：[1]Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2015年第2期49-52,共4页中国光学快报（英文版）

摘　　要：A depolarization phenomenon in an electro-optical crystal in a quasi-three-level 946 nm Nd：YAG laser is observed. A compensation of the thermal effects in electro-optical crystals is achieved by employing a quarter-wave plate, with one optical axis parallel to the laser polarization. This technique allows for the production of an electro-optically Q-switched 946 nm Nd：YAG laser at 1 k Hz. A maximum output power of 350 m W at 1 k Hz repetition frequency and 11 ns pulse duration are achieved with an output coupler of 10% transmission under the incident pump power of 11.1 W, corresponding to a peak power of ～32 k W.A depolarization phenomenon in an electro-optical crystal in a quasi-three-level 946 nm Nd：YAG laser is observed. A compensation of the thermal effects in electro-optical crystals is achieved by employing a quarter-wave plate, with one optical axis parallel to the laser polarization. This technique allows for the production of an electro-optically Q-switched 946 nm Nd：YAG laser at 1 k Hz. A maximum output power of 350 m W at 1 k Hz repetition frequency and 11 ns pulse duration are achieved with an output coupler of 10% transmission under the incident pump power of 11.1 W, corresponding to a peak power of ～32 k W.

关 键 词：Light polarization Optical devices Optical pumping Q switching 

分 类 号：O734[理学—晶体学]