Open AccessFinite-difference beam-propagation method for anisotropic waveguides with torsional birefringence
Author(s) -
Xiuquan Ma,
Shicheng Zhu,
Li Li,
Jinyan Li,
Xinyu Shao,
A. Galvanauskas
Publication year - 2018
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.26.003995
Subject(s) - beam propagation method , birefringence , optics , waveguide , anisotropy , beam (structure) , finite difference , finite difference method , physics , wave propagation , refractive index , materials science , mathematical analysis , mathematics , thermodynamics
A new three-dimensional finite-difference (FD)-based beam propagation method (BPM) is proposed for simulating optical propagation in weakly guiding waveguides with torsional birefringence, which cannot be simulated by existing FD-BPM algorithms. We also demonstrate that this new BPM algorithm is capable of obtaining eigenmode solutions in a helically-symmetric z-dependent waveguide structure with torsional birefringence.