Quantitative Analysis of a Flat-Top Planar Waveguide Demultiplexer

Title:	Quantitative Analysis of a Flat-Top Planar Waveguide Demultiplexer
Authors:	Lin, Chun-Ting Huang, Yang-Tung Huang, Jung-Yaw 生物科技學系電子工程學系及電子研究所光電工程學系 Department of Biological Science and Technology Department of Electronics Engineering and Institute of Electronics Department of Photonics
Keywords:	Concave grating;flat-top;planar waveguide;three-focal-point method;wavelength-division multiplexing
Issue Date:	1-Mar-2009
Abstract:	A three-focal-point method is used for the design of a flat-top planar waveguide concave grating. With the Gaussian approximation a modified formula is proposed and is compared with the numerical model of the scalar diffraction theory by using a design example. The sources of loss caused by the flat-top design and the grating are taken into consideration. The optimal separation between the two outmost focal points is obtained and the spectral response of the demultiplexer with a ripple below 0.04 dB is achieved.
URI:	http://dx.doi.org/10.1109/JLT.2008.2004932 http://hdl.handle.net/11536/7559
ISSN:	0733-8724
DOI:	10.1109/JLT.2008.2004932
Journal:	JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume:	27
Issue:	5-8
Begin Page:	552
End Page:	558
Appears in Collections:	Articles

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