Difference-frequency mixing of output waves from a periodically poled lithium niobate optical parametric oscillator in a GaSe crystal

被引：5
作者：
Haidar, S
Hsu, YK
Chang, CS
Wang, SC
Ito, H
机构：
[1] Tohoku Univ, Elect Commun Res Inst, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 300, Taiwan
[3] RIKEN, Photodynam Res Ctr, Aoba Ku, Sendai, Miyagi 9800868, Japan
来源：
OPTICAL ENGINEERING | 2002年 / 41卷 / 08期
关键词：
optical parametric oscillator; periodically poled lithium niobate; difference-frequency generation; GaSe;
D O I：
10.1117/1.1488606
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on an optical parametric oscillator (OPO) based on periodically poled lithium niobate (PPLN) pumped by a Nd:YAG laser, and on extending its tuning range by difference-frequency mixing of OPO output waves in GaSe crystal. Maximum combined signal and idler pulse energy of 2.7 mJ and slope efficiency of 25% have been achieved. The tuning range is 1.71 to 1.98 mum for the signal wave and 2.81 to 2.30 mum for the idler wave, using a single set of mirrors. As an application of this PPLN OPO, the signal and the idler waves are difference-frequency-mixed in a GaSe crystal to produce tunable mid-IR from 4.35 to 14.25 mum. The efficiency of the mixing has been analyzed, considering the experimental results. (C) 2002 Society of Photo-optical Instrumentation Engineers.
引用
收藏
页码：1932 / 1935
页数：4
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