Design and Properties of Concave Diffraction Gratings Based on Elliptical Bragg Mirrors

Author

Pottier, P. ; Packirisamy, Muthukumaran

Author_Institution

Dept. of Mech. & Ind. Eng., Concordia Univ., Montreal, QC, Canada

Volume

31

Issue

12

fYear

2013

fDate

15-Jun-13

Firstpage

1890

Lastpage

1898

Abstract

Fully dielectric diffraction gratings using Bragg mirrors that can be used in integrated spectrometry or wavelength division multiplexing (WDM) components are presented. Based on extended elliptical Bragg mirrors, they can preferentially select one particular diffraction order. The geometrical design conditions are presented along with numerical simulations for this family of gratings in which diffraction grating and Bragg mirror are not independent, resulting in efficiencies up to 99.9%. High grating efficiency is linked to Bragg mirror efficiency, even though wide Bragg bandwidth can be detrimental to the grating efficiency.

Keywords

diffraction gratings; integrated optics; mirrors; optical design techniques; wavelength division multiplexing; Bragg mirror efficiency; concave diffraction gratings; dielectric diffraction gratings; diffraction order; elliptical Bragg mirrors; geometrical design conditions; grating efficiency; integrated spectrometry; wavelength division multiplexing; Bragg gratings; Diffraction; Diffraction gratings; Gratings; Indexes; Mirrors; Optical waveguides; Bragg gratings; diffraction gratings; integrated optics; microspectrometers; optical design; wavelength division multiplexing (WDM);

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2013.2261853

Filename

6514540