Design of Two-Dimensional Photonic Crystal Filter with Kerr Medium

doi:10.13438/j.cnki.jdzk.2021.06.004

Abstract

Abstract: Making use of the feature that the permittivity of Kerr medium changes with the incident light, a new-type filter with Kerr medium is designed by controlling the side length of dielectric cylinder of coupled cavity to change the frequency. This filter consists of point defect, micro-cavity, download wave-guide, reflection heterojunction and main wave-guide, and the square GaAs dielectric cylinder is used in coupled cavity. The simulation calculation made through COMSOL Multiphysics shows that the filtering efficiency of this new filter can reach 99.7%.

Key words: Kerr medium, heterjunction, two-dimension alphotonic crystal, filter

LI Zhixin, SUN Jing, WU Cong, SU Muyang. Design of Two-Dimensional Photonic Crystal Filter with Kerr Medium[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(6): 23-29.

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