Simple, high-performance type II beta-BaB2O4 optical parametric oscillator

被引：23
作者：
Wu, S
Blake, GA
Sun, ZY
Ling, JW
机构：
[1] CALTECH,DIV GEOL & PLANETARY SCI,PASADENA,CA 91125
[2] CASIX INC,MONROVIA,CA 91016
来源：
APPLIED OPTICS | 1997年 / 36卷 / 24期
关键词：
type II beta-barium borate optical parametric oscillator; doubling efficiency;
D O I：
10.1364/AO.36.005898
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A visible/near-IR optical parametric oscillator (OPO) based on type II phase matching in beta-BaB2O4 (BBO) is described. Pumped at 355 nm, this OPO covers 410-2500 nm completely with a single set of standard Nd:YAG cavity optics. The output efficiency is >25%, the linewidth of the OPO is narrower than 1-2 cm(-1) without the use of gratings or etalons, and the signal-beam divergence is <400 mu rad. Three type I BBO doubling crystals are used to extend the tuning range from 208 to 415 nm. Doubling efficiencies as high as 40% are easily obtained. The reasons for the high doubling and overall system efficiency are discussed. (C) 1997 Optical Society of America.
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页码：5898 / 5901
页数：4
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