A wavelength demultiplexer based on waveguide broadening in silicon-on-insulator platform

Oscar Martinez Matos; Maria L. Calvo; Pavel Cheben; Andre Delage; Siegfried Janz; Dan-Xia Xu

doi:10.1117/12.591553

21 October 2004 A wavelength demultiplexer based on waveguide broadening in silicon-on-insulator platform

Oscar Martinez Matos, Maria L. Calvo, Pavel Cheben, Andre Delage, Siegfried Janz, Dan-Xia Xu

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.591553
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

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.

Citation Download Citation

Oscar Martinez Matos, Maria L. Calvo, Pavel Cheben, Andre Delage, Siegfried Janz, and Dan-Xia Xu "A wavelength demultiplexer based on waveguide broadening in silicon-on-insulator platform", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.591553

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