High-pulse-energy mid-infrared laser source based on optical parametric amplification in ZnGeP2

被引：36

作者：

Haakestad, Magnus W. ^{[1
]}

Arisholm, Gunnar ^{[1
]}

Lippert, Espen ^{[1
]}

Nicolas, Stephane ^{[1
]}

Rustad, Gunnar ^{[1
]}

Stenersen, Knut ^{[1
]}

机构：

[1] Norwegian Def Res Estab FFI, NO-2027 Kjeller, Norway

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 18期

关键词：

D O I：

10.1364/OE.16.014263

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Nonlinear optical conversion of 1.064 mu m pulses from a Q-switched Nd:YAG laser to the mid-infrared is demonstrated. The experimental setup is based on a two-stage master-oscillator/power-amplifier (MOPA) design with a KTiOPO4 based MOPA in the first stage and a KTiOAsO4/ZnGeP2 based MOPA in the second stage. The setup can be tuned to provide output at 8 mu m or in the 3-5 mu m wavelength region. We obtain more than 8 mJ at 8 mu m, and up to 33 mJ at 3-5 mu m. The measured beam quality factors are in the range M-2 = 2-4 for both wavelength regions. (c) 2008 Optical Society of America.

引用

页码：14263 / 14273

页数：11

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