Open AccessEfficient design of polarization insensitive polymer optical waveguide devices considering stress-induced effects
Author(s) -
Md. Foisal Hossain,
Hau Ping Chan,
Abbas Z. Kouzani
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.009334
Subject(s) - materials science , waveguide , optics , polarization (electrochemistry) , anisotropy , grating , finite element method , refractive index , fabrication , stress (linguistics) , optoelectronics , physics , medicine , linguistics , chemistry , alternative medicine , philosophy , pathology , thermodynamics
We present an approach for the efficient design of polarization insensitive polymeric optical waveguide devices considering stress-induced effects. In this approach, the stresses induced in the waveguide during the fabrication process are estimated first using a more realistic model in the finite element analysis. Then we determine the perturbations in the material refractive indices caused by the stress-optic effect. It is observed that the stresses cause non-uniform optical anisotropy in the waveguide materials, which is then incorporated in the modal analysis considering a multilayer structure of waveguide. The approach is exploited in the design of a Bragg grating on strip waveguide. Excellent agreement between calculated and published experimental results confirms the feasibility of our approach in the accurate design of polarization insensitive polymer waveguide devices.