Derivation of Coupling Coefficients of Modes in Slab Couplers: Ray Theory
From the reflection and transmission of light in coupled slabs, we derive the coupling coefficient of modes in coupled waveguides. The present result is found to be similar to that of the conventional coupled-mode theory which requires the evaluation of the overlap integral of modes in each individu...
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| Veröffentlicht in: | Japanese Journal of Applied Physics 1999-04, Vol.38 (4R), p.1989 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | From the reflection and transmission of light in coupled slabs, we derive the coupling
coefficient of modes in coupled waveguides. The present result is found to be similar to that
of the conventional coupled-mode theory which requires the evaluation of the overlap integral
of modes in each individual waveguide. Our method is simple, especially for analyzing complicated
coupled waveguides. |
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| ISSN: | 0021-4922 1347-4065 |
| DOI: | 10.1143/JJAP.38.1989 |