Tunable and coherent nanosecond 7.2-12.2 μm mid-infrared generation based on difference frequency mixing in ZnGeP_2 crystal  

作　　者：钟凯 李建松 徐德刚 汪静丽 王卓 王鹏 姚建铨 

机构地区：[1]Institute of Laser and Optoelectronics,College of Precision Instrument and Optoelectronic Engineering [2]Key Laboratory of Optoelectronic Information Science and Technology,Ministry of Education,Tianjin University

出　　处：《Optoelectronics Letters》2010年第3期179-182,共4页光电子快报（英文版）

基　　金：supported by the Major State Basic Research Development Program of China (No. 2007CB310403);the National Natural Science Foundation of China (No. 60801017);Research Fund for the Doctoral Program of Higher Education (No. 20070420118)

摘　　要：A coherent mid-infrared laser source,which can be tuned from 7.2 μm to 12.2 μm based on the type-Ⅰ 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.

关 键 词：Infrared devices Infrared lasers Optical frequency conversion Parametric oscillators 

分 类 号：O742[理学—晶体学]