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Proceedings Paper

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

Paper Details

Date Published: 21 November 2007
PDF: 5 pages
Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 67813R (21 November 2007); doi: 10.1117/12.741962
Show Author Affiliations
Jing Liu, Hunan Institute of Science and Technology (China)
Huazhong Univ. of Science and Technology (China)
Junqiang Sun, Huazhong Univ. of Science and Technology (China)
Chong-qing Huang, Hunan Institute of Science and Technology (China)
Wenjing Hu, Hunan Institute of Science and Technology (China)


Published in SPIE Proceedings Vol. 6781:
Passive Components and Fiber-based Devices IV
Ming-Jun Li; Jianping Chen; Satoki Kawanishi; Ian H. White, Editor(s)

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