| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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High Energy Terahertz Parametric Oscillator Based on Surface-Emitted Configuration |
| XU De-Gang1,2, ZHANG Hao1,2, JIANG Hao1,2, WANG Yu-Ye1,2**, LIU Chang-Ming1,2, YU Hong1,2, LI Zhong-Yang3, SHI Wei1,2, YAO Jian-Quan1,2 |
1Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072
2Key Laboratory of Optoelectronics Information Science and Technology (Ministry of Education), Tianjin University, Tianjin 300072
3North China University of Water Resources and Electric Power, Zhenzhou 450011
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| Cite this article: |
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XU De-Gang, ZHANG Hao, JIANG Hao et al 2013 Chin. Phys. Lett. 30 024212 |
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Abstract We experimentally demonstrate a high power nanosecond pulsed terahertz (THz)-wave parametric oscillator (TPO) by using a wide pump beam. A surface emitted cavity configuration is employed to reduce the THz absorption in MgO:LiNbO3 crystal. The THz wave can be tuned from 1 THz to 3 THz. A maximum THz output energy of 438 nJ/pulse is achieved at 1.56 Hz using a 4.5-mm-diameter pump beam with a pulse energy of 226 mJ pump energy with the repetition of 10 Hz, corresponding to the energy conversion efficiency of 1.94×10?6.
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Received: 10 September 2012
Published: 02 March 2013
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| PACS: |
42.65.Yj
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(Optical parametric oscillators and amplifiers)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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