TITLE:
Chalcogenide As2S3 Sidewall Bragg Gratings Integrated on LiNbO3 Substrate
AUTHORS:
Xin Wang, Aiting Jiang, Christi Madsen
KEYWORDS:
Waveguides; Bragg Gratings; Coupled-Mode Theory
JOURNAL NAME:
Optics and Photonics Journal,
Vol.3 No.1,
March
26,
2013
ABSTRACT: This paper introduces the design and applications of integrated As2S3 sidewall Bragg gratings on LiNbO3 substrate. The grating reflectance and bandwidth are analyzed with coupled-mode theory. Coupling coefficients are computed by taking overlap integration. Numerical results for uniform gratings, phase-shifted gratings and grating cavities as well as electro-optic tunable gratings are presented. These integrated As2S3 sidewall gratings on LiNbO3 substrate provide an approach to the design of a wide range of integrated optical devices including switches, laser cavities, modulators, sensors and tunable filters.