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Proceedings Paper

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

Paper Details

Date Published: 14 May 2010
PDF: 8 pages
Proc. SPIE 7717, Optical Modelling and Design, 77171L (14 May 2010); doi: 10.1117/12.854764
Show Author Affiliations
Marcin Wielichowski, Wroclaw Univ. of Technology (Poland)
Szymon Lis, Wroclaw Univ. of Technology (Poland)
Konrad Ptasiński, Wroclaw Univ. of Technology (Poland)
Sergiusz Patela, Wroclaw Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 7717:
Optical Modelling and Design
Frank Wyrowski; John T. Sheridan; Jani Tervo; Youri Meuret, Editor(s)

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