Energy transmission and distribution of guided modes in parallel-plate waveguide coupler

Jing Liu; Junqiang Sun; Chong-qing Huang; Wenjing Hu

doi:10.1117/12.741962

21 November 2007 Energy transmission and distribution of guided modes in parallel-plate waveguide coupler

Jing Liu, Junqiang Sun, Chong-qing Huang, Wenjing Hu

Proceedings Volume 6781, Passive Components and Fiber-based Devices IV; 67813R (2007) https://doi.org/10.1117/12.741962
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

Abstract

Transmission characteristics are studied for parallel-plate waveguide coupler. It is shown that the stable light field distribution and mode pattern are determined by its own geometric and dielectric parameters, but have nothing to do with the categories of incident sources. It is also found that the coupling effect would generate between waveguides through evanescent field. The calculated results indicate that the field amplitudes in both waveguides are changing with the change of propagation distances, simultaneously the transmitted powers are changing periodically between the two waveguides along the direction of wave propagation. According to the field distributions, the optimum coupling length and coupling efficiency can be obtained. Our numerical simulation is based on the finite difference time domain method without using special mathematical knowledge.

Citation Download Citation

Jing Liu, Junqiang Sun, Chong-qing Huang, and Wenjing Hu "Energy transmission and distribution of guided modes in parallel-plate waveguide coupler", Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 67813R (21 November 2007); https://doi.org/10.1117/12.741962

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