Analysis of the coupling characteristics of a tapered coupledwaveguide system |
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| Authors: | Cai Y Mizumoto T Naito Y |
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| Affiliation: | Dept. of Phys. Electron., Tokyo Inst. of Technol. ; |
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| Abstract: | Optical coupling characteristics between one uniform waveguide and one tapered waveguide are discussed. This coupling structure is analyzed by utilizing coupled-mode theory and system step approximation. Based on numerical investigation, various coupling characteristics are presented. It is shown that the proposed structure can be used as a waveguide-type optical power divider by selecting an appropriate taper slope for the tapered waveguide or by separating the coupled waveguides properly for a desired power-dividing ratio |
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