Apodized photonic crystal waveguide gratings

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

Apodized photonic crystal waveguide gratings

Yokoi, Nobuhiro; Fujisawa, Takeshi; Saitoh, Kunimasa et al.

Optics Express, 2006, 14(10), 4459-4468

Permalink : https://hdl.handle.net/2115/13478

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アクセス権	open access
URI	https://hdl.handle.net/2115/13478
タイトル	Apodized photonic crystal waveguide gratings
著者	Yokoi, Nobuhiro ; Fujisawa, Takeshi ; Saitoh, Kunimasa ; Koshiba, Masanori
著者名 Yokoi, Nobuhiro
著者名 Fujisawa, Takeshi
e-Rad_Researcher 20333627 著者名 Saitoh, Kunimasa 齊藤, 晋聖
e-Rad_Researcher 40101521 著者名 Koshiba, Masanori
言語	英語
キーワード	optical devices
	bragg reflectors
	photonic crystal
発行日	2006-05-15
出版者	Optical Society of America
収録物名	Optics Express
巻(号)	14(10)
ページ	4459-4468
抄録	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.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	© 2006 Optical Society of America, Inc.
PISSN	1094-4087
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1364/OE.14.004459