Which method for a quick and precise modal analysis? Application to coupled polymer waveguides

Bob Bellini; Jean-Francois Larchanche; Guanghai Jin; Joseph Harari; Jean-Pierre Vilcot; Didier J. Decoster

doi:10.1117/12.373598

29 December 1999 Which method for a quick and precise modal analysis? Application to coupled polymer waveguides

Bob Bellini, Jean-Francois Larchanche, Guanghai Jin, Joseph Harari, Jean-Pierre Vilcot, Didier J. Decoster

Proceedings Volume 4016, Photonics, Devices, and Systems; (1999) https://doi.org/10.1117/12.373598
Event: Photonics Prague '99, 1999, Prague, Czech Republic

Abstract

We present a study for an easy-going and fast modal analysis. We tackle the problem with three different approaches: the first one adopts a finalist viewpoint and is based on the 3D finite Difference Beam Propagation Method along imaginary axis. The second one is the numerical analysis' classical finite element method, applied to H. The third one consists in amounting to slab waveguides for which there are analytical solutions. We emphasize on the distinct natures of errors and, as an illustration, we study one optical ridge waveguide and one buried waveguide, made up with polymers. The methods are computed on 200-MHz PC and we discuss calculation time and accuracy. Eventually, through the conception of a candid coupler, we demonstrate what it costs to choose the wrong way, and in view of typical parameters of these structure, which is the most suitable method.

Citation Download Citation

Bob Bellini, Jean-Francois Larchanche, Guanghai Jin, Joseph Harari, Jean-Pierre Vilcot, and Didier J. Decoster "Which method for a quick and precise modal analysis? Application to coupled polymer waveguides", Proc. SPIE 4016, Photonics, Devices, and Systems, (29 December 1999); https://doi.org/10.1117/12.373598

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