Tunable and coherent nanosecond 7.2-12.2 μm mid-infrared generation based on difference frequency mixing in ZnGeP2 crystal

被引：5
|
作者：
Zhong K. [1 ]
Li J.-S. [1 ]
Xu D.-G. [1 ]
Wang J.-L. [1 ]
Wang Z. [1 ]
Wang P. [1 ]
Yao J.-Q. [1 ]
机构：
[1] Institute of Laser and Optoelectronics, College of Precision Instrument
[2] Key Laboratory of Optoelectronic Information Science, Tianjin University and Technology, Ministry of Education
来源：
Optoelectronics Letters | 2010年 / 6卷 / 03期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
* This work has been supported by the Major State Basic Research Development Program of China (No. 2007CB310403); the National Natural Science Foundation of China (No. 60801017); and Research Fund for the Doctoral Program of Higher Education (No. 20070420118). ** E-mail: zhongkai1984@gmail. com;
D O I：
10.1007/s11801-010-9267-4
中图分类号：
学科分类号：
摘要：
A coherent mid-infrared laser source, which can be tuned from 7.2 μm to 12.2 μm based on the type-II phase-matched difference frequency generation (DFG) in an uncoated ZnGeP2 (ZGP) crystal, is reported. The two pump waves are from a type-II phase-matched dual-wavelength KTP optical parametric oscillator (OPO) of which the signal and idler waves are tuned during 1.85-1.96 μm (extraordinary wave) and 2.5-2.33 μm (ordinary wave), respectively. The maximum energy of the generated mid-infrared laser is 10 μJ at 9.22 μm, corresponding to the peak power of 2.2 kW. © 2010 Tianjin University of Technology and Springer-Verlag Berlin Heidelberg.
引用
收藏
页码：179 / 182
页数：3
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