Design of Waveguide Bragg Gratings With Strong Index Corrugations

Author

Mu, Jian Wei ; Zhang, Hua ; Huang, Wei Ping

Author_Institution

Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, ON

Volume

26

Issue

12

fYear

2008

fDate

6/15/2008 12:00:00 AM

Firstpage

1596

Lastpage

1601

Abstract

Waveguide Bragg grating structures with strong index corrugations are analyzed by the complex mode-matching method. As the index corrugation increases, the peak wavelength of the reflection spectrum is shifted towards shorter wavelength from the conventional Bragg condition due to the energy storage effect. It is shown that the peak wavelength corresponds to the center of the stop-band of the Floquet-Bloch mode. An efficient and reliable iterative method is proposed for design of grating structures with strong corrugations.

Keywords

Bragg gratings; coupled mode analysis; iterative methods; mode matching; optical design techniques; optical waveguide theory; Floquet-Bloch mode; complex mode-matching method; conventional Bragg condition; coupled-mode theory; energy storage effect; reflection spectrum peak wavelength; reliable iterative method; stop-band; strong index corrugation analysis; waveguide Bragg gratings design; Bragg gratings; Electromagnetic waveguides; Integrated optics; Interference; Mode matching methods; Optical coupling; Optical feedback; Optical filters; Optical reflection; Optical waveguides; Deep gratings; Floquet–Bloch mode; phase shift;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2008.919465

Filename

4542962