Title :
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
fDate :
6/15/2008 12:00:00 AM
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;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2008.919465
