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Proceedings Paper

A wavelength demultiplexer based on waveguide broadening in silicon-on-insulator platform
Author(s): Oscar Martinez Matos; Maria L. Calvo; Pavel Cheben; Andre Delage; Siegfried Janz; Dan-Xia Xu
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Paper Abstract

We propose a modified arrayed waveguide grating (AWG) demultiplexer formed by an array of parallel ridge waveguides of equal length fabricated in silicon-on-insulator (SOI). Each waveguide contains two sections with different widths. The lengths of the two sections are modified from a waveguide to the adjacent waveguide, resulting in a wavelength dispersive phase array. With an appropriate demultiplexer output geometry, the light is focused in the output slab waveguide combiner. The focal position is wavelength dependent in the transverse direction, so that the optical signal is demultiplexed into separated output channels corresponding to different spectral bands. This device does not require bending waveguide sections which are essential in a conventional AWG demultiplexer, yielding very compact devices with potentially low loss. Numerical simulations have been carried out to evaluate the influence of waveguide parameters such as lengths and widths of different waveguide sections on demultiplexer performance.

Paper Details

Date Published: 21 October 2004
PDF: 5 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.591553
Show Author Affiliations
Oscar Martinez Matos, Univ. Complutense de Madrid (Spain)
Maria L. Calvo, Univ. Complutense de Madrid (Spain)
Pavel Cheben, National Research Council (Canada)
Andre Delage, National Research Council (Canada)
Siegfried Janz, National Research Council (Canada)
Dan-Xia Xu, National Research Council (Canada)

Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications
Aristides Marcano O.; Jose Luis Paz, Editor(s)

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