Title : ( High performance Bragg gratings in chalcogenide rib waveguides written with a modified Sagnac interferometer )
Authors: Mehrdad Shokooh-Saremi , V. G. Ta’eed , N. J. Baker , I. C. M. Littler , D. J. Moss , B. J. Eggleton , Y. Ruan , B. Luther-Davies ,
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Abstract
We demonstrate the highest-quality Bragg gratings reported to date in chalcogenide glass rib waveguides, both in strength and apodization. A modified Sagnac interferometer is employed to write gratings in As2S3-based rib waveguides, achieving an induced refractive index modulation of the order of 10−2 and a grating transmission rejection of more than 30 dB. We obtain good agreement between experimental and theoretical results based on a transfer-matrix formulation for multilayer optical structures. In addition, we report fabrication of phase shifted Bragg gratings, as well as an investigation of the role of birefringence, higher-order modes, and aging. Finally, grating growth dynamics are investigated by in situ monitoring during writing.
Keywords
, 350.2770, 190.4390, 130.3120
@article{paperid:1024430,
author = {Shokooh-Saremi, Mehrdad and V. G. Ta’eed and N. J. Baker and I. C. M. Littler and D. J. Moss and B. J. Eggleton and Y. Ruan and B. Luther-Davies},
title = {High performance Bragg gratings in chalcogenide rib waveguides written with a modified Sagnac interferometer},
journal = {Journal of the Optical Society of America B: Optical Physics},
year = {2006},
volume = {23},
number = {7},
month = {July},
issn = {0740-3224},
pages = {1323--1331},
numpages = {8},
keywords = {350.2770; 190.4390; 130.3120},
}
%0 Journal Article
%T High performance Bragg gratings in chalcogenide rib waveguides written with a modified Sagnac interferometer
%A Shokooh-Saremi, Mehrdad
%A V. G. Ta’eed
%A N. J. Baker
%A I. C. M. Littler
%A D. J. Moss
%A B. J. Eggleton
%A Y. Ruan
%A B. Luther-Davies
%J Journal of the Optical Society of America B: Optical Physics
%@ 0740-3224
%D 2006
