Numerical Study Of The Coupling Of Two Guided-Waves By A Grating With Varying Period

Patrick Vincent

doi:10.1117/12.965643

10 February 1981 Numerical Study Of The Coupling Of Two Guided-Waves By A Grating With Varying Period

Patrick Vincent

Proceedings Volume 0240, Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I; (1981) https://doi.org/10.1117/12.965643
Event: 24th Annual Technical Symposium, 1980, San Diego, United States

Abstract

In Integrated Optics, the coupling of one mode propagating into a multimode slab waveguide to a single mode slab waveguide can be achieved by the use of a grating with varying period. A method to compute the coupling efficiency of the grating is proposed here. The fir t step is based on the differential formalism of diffraction and gives phenomenological coefficients characterizing the grating. Then an adiabatic approximation is used to take into account the variations of the grating period and the coupling coefficient is found by the numerical integration of a set of two coupled differential equations along the length of the device.

Citation Download Citation

Patrick Vincent "Numerical Study Of The Coupling Of Two Guided-Waves By A Grating With Varying Period", Proc. SPIE 0240, Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I, (10 February 1981); https://doi.org/10.1117/12.965643

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