THE NEAR-CONCENTRIC UNSTABLE RESONATOR (NCUR) - AN IMPROVED RESONATOR DESIGN FOR HIGH-POWER SOLID-STATE LASERS

被引:7
作者
HODGSON, N [1 ]
BOSTANJOGLO, G [1 ]
WEBER, H [1 ]
机构
[1] TECH UNIV BERLIN, INST OPT, W-1000 BERLIN 12, GERMANY
关键词
D O I
10.1016/0030-4018(93)90708-D
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A novel concept of an unstable resonator, the near-concentric unstable resonator (NCUR), is introduced; its properties include a much lower sensitivity to thermal lensing as compared to other unstable resonator schemes. Experiments were performed with a pulsed Nd:YAG rod laser capable of 550 W of maximum output power with short flat-flat resonators. A maximum output power of 420 W and beam parameter products below 3 mm mrad were obtained with a symmetrical NCUR with a variable reflectivity mirror.
引用
收藏
页码:75 / 81
页数:7
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