Apodized photonic crystal waveguide gratings

Yokoi, Nobuhiro; Fujisawa, Takeshi; Saitoh, Kunimasa; Koshiba, Masanori

doi:10.1364/OE.14.004459


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Apodized photonic crystal waveguide gratings

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/13478

Title:	Apodized photonic crystal waveguide gratings
Authors:	Yokoi, Nobuhiro Browse this author
	Fujisawa, Takeshi Browse this author
	Saitoh, Kunimasa³ Browse this author →KAKEN DB
	Koshiba, Masanori Browse this author →KAKEN DB
Authors(alt):	齊藤, 晋聖³
Keywords:	optical devices
	bragg reflectors
	photonic crystal
Issue Date:	15-May-2006
Publisher:	Optical Society of America
Journal Title:	Optics Express
Volume:	14
Issue:	10
Start Page:	4459
End Page:	4468
Publisher DOI:	10.1364/OE.14.004459
Abstract:	Apodized photonic crystal (PC) waveguide gratings are proposed to suppress sidelobes which appear in reflection spectra of usual PC waveguide gratings. By using specific functions (Gauss and Gauss-cosine functions) for the longitudinal refractive index distribution, it is possible to suppress sidelobes in the reflection spectra of PC waveguide gratings efficiently. The apodization is realized by simply changing diameters of dielectric pillars adjacent to the PC waveguide core. It is shown that by using Gauss-cosine functions for the apodization, Bragg frequency of the waveguide grating becomes insensitive to the magnitude of perturbation leading to the possibility of designing waveguide gratings with arbitrarily Bragg frequency and bandwidth by modulating geometrical parameters only.
Rights:	© 2006 Optical Society of America, Inc.
Type:	article (author version)
URI:	http://hdl.handle.net/2115/13478
Appears in Collections:	情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 齊藤晋聖

OAI-PMH ( junii2 , jpcoar_1.0 )

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