Optical Nyquist filters based on silicon coupled resonator optical waveguides

Title:	Optical Nyquist filters based on silicon coupled resonator optical waveguides
Authors:	Xu, Ke Sung, Jiun-Yu Wong, Chi Yan Cheng, Zhenzhou Chow, Chi Wai Tsang, Hon Ki 光電工程學系 Department of Photonics
Keywords:	Nyquist-WDM;Coupled resonator optical waveguide;Silicon photonics
Issue Date:	15-Oct-2014
Abstract:	We propose an integrated optical Nyquist filter based on silicon coupled resonator optical waveguides (CROW). The designed filter can shape the 28 Gbaud QPSK spectrum to a spectrum having 0.2 roll-off raised cosine shape with G-dB bandwidth equals to the baud rate. The impact of the fabrication tolerance induced coupling coefficients error on the figure of merits of the filter is considered. The filter overall performance is investigated in a Nyquist-WDM system and compared with a 4th order super Gaussian filter. (C) 2014 Elsevier B.V. All rights reserved.
URI:	http://dx.doi.org/10.1016/j.optcom.2014.05.007 http://hdl.handle.net/11536/24599
ISSN:	0030-4018
DOI:	10.1016/j.optcom.2014.05.007
Journal:	OPTICS COMMUNICATIONS
Volume:	329
Issue:
Begin Page:	23
End Page:	27
Appears in Collections:	Articles

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