Accurate Analysis of Polarization Coupling in Laminated Multilayered Thin Film Optical 3-D Waveguides

Massaro, A. ; Mancini, V. ; Di Donato, A. ; Rozzi, T. (2003) Accurate Analysis of Polarization Coupling in Laminated Multilayered Thin Film Optical 3-D Waveguides. In: Gallium Arsenide applications symposium. GAAS 2003, 6-10 October 2003, Munich.

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Abstract

Coupled mode theory (CM) is widely applied in integrated optics, while the rigorous Local Mode theory (LM) is less known, being somewhat harder to implement. We compare the two theories in determining polarization coupling inside a laminated rib waveguide made of a-Si:H and SiO2.For moderate optical axis slant (low hybridization) and for fixed layer thickness the two theories show similar results but LM becomes mandatory when hybridization is important.

Abstract

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