Compact and tunable mid-infrared source based on a 2 μm dual-wavelength KTiOPO4 intracavity optical parametric oscillator |
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作者姓名: | 耿优福 谭晓玲 李学金 姚建铨 |
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作者单位: | College of Physics Science and Technology,Shenzhen Key Laboratory of Sensor Technology,Shenzhen University College of Precision Instrument and Optoelectronics Engineering,Institute of Laser and Optoelectronics,Tianjin University Faculty of Science,Ningbo University |
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基金项目: | Project supported by the National Natural Science Foundation of China (Grant Nos. 60777036 and 60671036), and the National Basic Research Program of China (Grant No. 2007CB310403). |
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摘 要: | Using a double resonant KTiOPO 4 (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.
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关 键 词: | mid-infrared radiation difference frequency generation optical parametric oscillator phase matching scheme |
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