Fourier transform analysis on random quasi-phase matching problems

Sijia Wang; Kai Zhong; Kefei Liu; Jiawei Li; Degang Xu; Jianquan Yao

doi:10.1117/12.2598970

9 October 2021 Fourier transform analysis on random quasi-phase matching problems

Sijia Wang, Kai Zhong, Kefei Liu, Jiawei Li, Degang Xu, Jianquan Yao

Proceedings Volume 11905, Quantum and Nonlinear Optics VIII; 119050Q (2021) https://doi.org/10.1117/12.2598970
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Conference Poster

Abstract

The Fourier transform treatment on random quasi-phase matching (RQPM) problems in nonlinear polycrystalline materials is proposed to simplify the simulation process. The spatial frequency spectrum information of the polycrystalline material is obtained directly by Fourier transform analysis in the space domain, which is closely related to wave number and coherence length. Using this method to simulate the second harmonic generation (SHG), the results are consistent with the previous studies, which verifies the feasibility of this method.

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Sijia Wang, Kai Zhong, Kefei Liu, Jiawei Li, Degang Xu, and Jianquan Yao "Fourier transform analysis on random quasi-phase matching problems", Proc. SPIE 11905, Quantum and Nonlinear Optics VIII, 119050Q (9 October 2021); https://doi.org/10.1117/12.2598970

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