High-efficiency terahertz generation combined with cavity phase matching and quasi-phase matching

Shijia Zeng,Zhiming Rao,Fangsen Xie

doi:10.1007/s12596-019-00511-7

High-efficiency terahertz generation combined with cavity phase matching and quasi-phase matching

Shijia Zeng, Zhiming Rao + Show 1 more

https://doi.org/10.1007/s12596-019-00511-7

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Publication Date: Feb 2, 2019

Citations: 1

Affiliation: Jiangxi Normal University, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology

#Cavity Phase Matching #Quasi-phase Matching + Show 8 more

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Abstract

High-efficiency terahertz generation by difference frequency generation (DFG) combined with cavity phase matching (CPM) and quasi-phase matching (QPM) is predicted in this paper. Numerical simulations show that the power conversion efficiency can reach a maximum value of 1.63%, which corresponds to a photon conversion efficiency of 66%. The efficiency is increased by ~ 102 times when compared with the DFG based on CPM or QPM. This phase matching method is expected to become a substitute for a single CPM or QPM.

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