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Authors: S. Pathak, M. Vanslembrouck, P. Dumon, D. Van Thourhout, W. Bogaerts
Title: Optimized Silicon AWG with Flattened Spectral Response Using an MMI Aperture
Format: International Journal
Publication date: 1/2013
Journal/Conference/Book: Journal of Lightwave Technology
Editor/Publisher: IEEE, 
Volume(Issue): 31(1) p.87-93
Internal Reference: [N-1384]
Download: Download this Publication (1.5MB) (1.5MB)

Abstract

We demonstrate compact 12-channel 400 GHz arrayed waveguide grating wavelength demultiplexers (AWG) in
silicon with a flattened spectral response. Insertion loss, crosstalk and non-uniformity are −3.29dB , 17.0dB and 1.55dB respectively. The flattened spectral response is obtained by using an optimized mode shaper consisting of a multi-mode interference coupler as the input aperture of the AWG. The ratio of the 1dB bandwidth to the 10dB bandwidth is improved by 50%, from 0.33 to 0.49 compared to a conventional AWG. The device size is only 560 ~ 350ƒÊm2 .

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