Compact and tunable mid-infrared source based on a 2 μm dual-wavelength KTiOPO_4 intracavity optical parametric oscillator  

作　　者：耿优福 谭晓玲 李学金 姚建铨 

机构地区：[1]College of Physics Science and Technology,Shenzhen Key Laboratory of Sensor Technology,Shenzhen University [2]College of Precision Instrument and Optoelectronics Engineering,Institute of Laser and Optoelectronics,Tianjin University [3]Faculty of Science,Ningbo University

出　　处：《Chinese Physics B》2010年第11期436-440,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 60777036 and 60671036);the National Basic Research Program of China (Grant No. 2007CB310403)

摘　　要：Using a double resonant KTiOPO4 （KTP） intracavity optical parametric oscillator operating at degenerated point of 2 μm, we demonstrate a unique mid-infrared source based on difference frequency generation in GaSe crystal. The output tuning range is 8.42-19.52 μm, and a peak power of 834 W for type-Ⅰ phase matching scheme and 730 W for type-Ⅱ phase matching scheme are achieved. Experimental results show that this oscillator is a good alternative to the generator of a compact and tabletop mid-infrared radiation with a widely tunable range.Using a double resonant KTiOPO4 （KTP） intracavity optical parametric oscillator operating at degenerated point of 2 μm, we demonstrate a unique mid-infrared source based on difference frequency generation in GaSe crystal. The output tuning range is 8.42-19.52 μm, and a peak power of 834 W for type-Ⅰ phase matching scheme and 730 W for type-Ⅱ phase matching scheme are achieved. Experimental results show that this oscillator is a good alternative to the generator of a compact and tabletop mid-infrared radiation with a widely tunable range.

关 键 词：mid-infrared radiation difference frequency generation optical parametric oscillator phase matching scheme 

分 类 号：TN212[电子电信—物理电子学] TN753.91