Mid-infrared source with 0.2 J pulse energy based on nonlinear conversion of Q-switched pulses in ZnGeP2

被引：77
作者：
Haakestad, Magnus W. [1 ]
Fonnum, Helge [1 ]
Lippert, Espen [1 ]
机构：
[1] Norwegian Def Res Estab FFI, NO-2027 Kjeller, Norway
来源：
OPTICS EXPRESS | 2014年 / 22卷 / 07期
关键词：
OPTICAL PARAMETRIC OSCILLATOR; IMPROVED BEAM QUALITY; MASTER-OSCILLATOR; LASER; OPO;
D O I：
10.1364/OE.22.008556
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Mid-infrared (3-5 mu m) pulses with high energy are produced using nonlinear conversion in a ZnGeP2-based master oscillator-power amplifier, pumped by a Q-switched cryogenic Ho:YLF oscillator. The master oscillator is based on an optical parametric oscillator with a V-shaped 3-mirror ring resonator, and the power amplifier is based on optical parametric amplification in large-aperture ZnGeP2 crystals. Pulses with up to 212 mJ energy at 1 Hz repetition rate are obtained, with FWHM duration 15 ns and beam quality M-2 = 3. (C) 2014 Optical Society of America
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收藏
页码：8556 / 8564
页数：9
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