Presentation 1999/11/25
Coupled-Mode Analysis for a Grating-Assisted Directional Coupler Using Second-Order Perturbation Theory
Koki Watanabe, Kiyotoshi Yasumoto,
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Abstract(in English) A grating-assisted directional coupler made of two dielectric slab waveguides is analyzed by using coupled-mode formulation based on singular perturbation technique. The formulation is based on the para-axial wave fields for each isolated waveguide, and the effects of the adjacent waveguide and the grating are regarded as the perturbations. The coupled-mode equations are derived by the first-order and second-order perturbation analyses. The calculated wavelength response in the power transfer is in close agreement with that obtained by a direct numerical analysis using the Fourier series expansion method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) grating-assisted directional coupler / phase-matching condition / coupled-mode theory / singular perturbation technique
Paper # OCS99-76
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Committee OCS
Conference Date 1999/11/25(1days)
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Registration To Optical Communication Systems (OCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Coupled-Mode Analysis for a Grating-Assisted Directional Coupler Using Second-Order Perturbation Theory
Sub Title (in English)
Keyword(1) grating-assisted directional coupler
Keyword(2) phase-matching condition
Keyword(3) coupled-mode theory
Keyword(4) singular perturbation technique
1st Author's Name Koki Watanabe
1st Author's Affiliation Department of Computer Science and Communication Engineering, Kyushu University()
2nd Author's Name Kiyotoshi Yasumoto
2nd Author's Affiliation Department of Computer Science and Communication Engineering, Kyushu University
Date 1999/11/25
Paper # OCS99-76
Volume (vol) vol.99
Number (no) 462
Page pp.pp.-
#Pages 6
Date of Issue