Coupled-mode analysis of wavelength filtering in a grating-assisted asymmetric three-waveguide directional coupler

Watanabe, Kenji; Yasumoto, Kiyotoshi

doi:10.1364/josaa.14.002994

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Cited by 6 publications

(2 citation statements)

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“…The power transfer characteristics in grating-assisted directional couplers have been mainly investigated using the coupled-mode theory [2][3][4][5][6][7], because an exact analytical treatment is rather difficult. Marcuse [2] has pointed out that the grating-assisted couplers should be formulated with the orthogonal coupled-mode theory based on the exact coupler modes to obtain the correct phase-matching condition.…”

Section: Introductionmentioning

confidence: 99%

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Coupled-Mode Analysis of a Gating-Assisted Directional Coupler Using Singular Perturbation Technique

Watanabe¹,

Ishihara²,

Yasumoto³

2000

PIER

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Section: Introductionmentioning

confidence: 99%

“…They have used the approximate coupler modes to deduce the phase-matching condition and then transformed the orthogonal coupled-mode equations into the nonorthogonal ones to calculate the power transfer. This approach has been applied to the analysis of a grating-assisted three-waveguide coupler [7].…”

Section: Introductionmentioning

confidence: 99%