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

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Martínez Matos, Óscar and Calvo Padilla, María Luisa and Cheben, Pavel and Delâge, André and Janz, Siegfried and Xu, Dan-Xia (2004) A wavelength demultiplexer based on waveguide broadening in silicon-on-insulator platform. In RIAO/OPTILAS 2004: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, And their Applications, Pts 1-3: ICO Regional Meeting. Proceedings of the Society Of Photo-Optical Instrumentation Engineers (SPIE) (5622). Society Of Photo-Optical Instrumentation Engineers (SPIE), pp. 885-889. ISBN 0-8194-5575-X

Official URL: http://dx.doi.org/10.1117/12.591553




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 lenghts of the two sections are modified from a waveguide to the adjacent waveguide, resulting in a wavelength dispersive phase array. With an appropiate demultiplexer output geometry, the light is focussed 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.


Item Type:Book Section
Additional Information:

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering.
Iberoamerican Meeting on Optics / 8th Latin American Meeting on Optics, Lasers, and Their Applications (5º. 2004. Porlamar, Venezuela).

Uncontrolled Keywords:Wavelenght Demultiplexer, Array Waveguide grating (AWG), Silicon-On-Insulator, Waevlength Dispersion, Channel Spacing
Subjects:Sciences > Physics > Optics
ID Code:25258
Deposited On:09 May 2014 11:35
Last Modified:09 May 2014 11:35

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