550-W diode-pumped Nd:YAG disk laser  

作　　者：姚震宇 蒋建锋 涂波 周唐建 崔玲玲 

机构地区：[1]Institute of Applied Electronics China Academy of Engineering Physics Mianyang 621900

出　　处：《Chinese Optics Letters》2005年第11期647-649,共3页中国光学快报（英文版）

基　　金：This work was supported by the National "863" Program of China under Grant No. 2004AA821160.

摘　　要：When a thin laser crystal disk is used with a nearly flat-top pump profile, the heat flux can be considered to be one-dimensional. This results in a homogeneous temperature and stress profile within the laser medium leading to reduction of thermal effects. A nearly flat-top pump profile is achieved with a two-pass cylindrical-lens coupling system. An average output power of 550 W is obtained by an average pumping power of 1650 W with a 40-mm diameter Nd：YAG disk. The optical-optical efficiency is 33%.When a thin laser crystal disk is used with a nearly flat-top pump profile, the heat flux can be considered to be one-dimensional. This results in a homogeneous temperature and stress profile within the laser medium leading to reduction of thermal effects. A nearly flat-top pump profile is achieved with a two-pass cylindrical-lens coupling system. An average output power of 550 W is obtained by an average pumping power of 1650 W with a 40-mm diameter Nd：YAG disk. The optical-optical efficiency is 33%.

关 键 词：COUPLINGS CRYSTALS DIODES Heat flux Optical pumping Solid state lasers 

分 类 号：TN248[电子电信—物理电子学]