Home > Archive>Volume 13, Issue 2, 2017 >127-130. DOI:10.1007/s11801-017-6253-0
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Highly efficient terahertz generation from periodically-poled RbTiOPO4
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1. College of Electric Power, North China University of Water Resources and Electric Power, Zhengzhou 450045, China;2. Institute of Laser and Opto-electronics, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China

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    Abstract:

    Terahertz (THz) generation by periodically-poled RbTiOPO4 (PPRTP) with a quasi-phase-matching scheme based on cascaded difference frequency generation (DFG) processes is theoretically analyzed. The cascaded Stokes and anti-Stokes interaction processes are investigated from coupled wave equations. The THz intensities and quantum conversion efficiency are calculated. Compared with that of non-cascaded DFG processes, the THz intensity in 7-order cascaded DFG processes is increased to 2.95 times. The quantum conversion efficiency of 149.9% in cascaded processes can be realized, which exceeds the Manley-Rowe limit.

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LI Zhong-yang, WANG Meng-tao, WANG Si-lei, XU De-gang, YAO Jian-quan. Highly efficient terahertz generation from periodically-poled RbTiOPO4[J]. Optoelectronics Letters,2017,13(2):127-130

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History
  • Received:November 18,2016
  • Revised:December 19,2016
  • Online: November 02,2017
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