Efficient self-frequency doubling of Nd:GdCOB crystal by type-I phase matching out of its principal planes

被引:52
作者
Wang, CQ
Chow, YT
Gambling, WA
Zhang, SJ
Cheng, ZX
Shao, ZS
Chen, HC
机构
[1] City Univ Hong Kong, Optoelect Res Ctr, Kowloon, Hong Kong, Peoples R China
[2] Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R China
[3] Shandong Univ, Natl Lab Crystal Mat, Jinan 250100, Peoples R China
关键词
self-frequency doubling; Nd : GdCOB; phase-matching; principal plane;
D O I
10.1016/S0030-4018(99)00713-0
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report on the efficient self-frequency doubling of Nd:GdCOB crystal by type-I phase-matching at theta = 66.3 degrees and phi = 134.4 degrees, which is out of its principal planes. A CW output power of 225 mW at 530.5 nm is obtained at an absorbed pump power of 1.56 W with an optical conversion efficiency of 14.4% and an absorbed threshold pump power of 1.8 mW. To our knowledge, this is the highest output power, the highest efficiency and the lowest threshold obtained from a self-frequency-doubled Nd:GdCOB laser to date. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:471 / 474
页数:4
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