Design procedure for planar add-drop multiplexer based on contra-directional coupler and apodized Bragg grating

Marcin Wielichowski; Szymon Lis; Konrad Ptasiński; Sergiusz Patela

doi:10.1117/12.854764

14 May 2010 Design procedure for planar add-drop multiplexer based on contra-directional coupler and apodized Bragg grating

Marcin Wielichowski, Szymon Lis, Konrad Ptasiński, Sergiusz Patela

Author Affiliations +

Proceedings Volume 7717, Optical Modelling and Design; 77171L (2010) https://doi.org/10.1117/12.854764
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

A wavelength selective add-drop multiplexer utilizing a directional coupler loaded with a first order Bragg grating can be realized both in fiber and planar technologies. Specifically for the planar case, we detail a systematic design procedure leading from general assumptions concerning the functional parameters of the device down to geometrical dimensions of the resulting planar microstructure. The functional parameters include: channel spectral width and channel isolation. The resulting dimensions are: waveguides etch depth, grating etch depth and lengths of apodized-grating trenches. Grating apodization profile of the form sin^n is assumed. Design curves are presented, enabling an optimal choice of the apodization profile's exponent n considering a tradeoff between the required channel isolation and the resulting grating length.

Citation Download Citation

Marcin Wielichowski, Szymon Lis, Konrad Ptasiński, and Sergiusz Patela "Design procedure for planar add-drop multiplexer based on contra-directional coupler and apodized Bragg grating", Proc. SPIE 7717, Optical Modelling and Design, 77171L (14 May 2010); https://doi.org/10.1117/12.854764

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