Back to Search
Start Over
A Modified full-vectorial finite-difference beam propagation method based on H-fields for optical waveguides with step-index profiles
- Source :
-
Optics Communications . Oct2006, Vol. 266 Issue 2, p505-511. 7p. - Publication Year :
- 2006
-
Abstract
- Abstract: A modified full-vectorial finite-difference beam propagation method based on H-fields in solving the guided-modes for optical waveguides with step-index profiles is described. The propagation is split into two substeps. In the first substep, the field propagates in the absence of the cross-coupling terms, and then they are evaluated and double used in the second substep. An improved six-point finite-difference scheme is constructed to approximate the cross-coupling terms along the transverse directions. By using the imaginary-distance procedure, the field patterns and the normalized propagation constants of the fundamental modes for a buried rectangular waveguide and rib waveguide are presented, and the hybrid nature of the full-vectorial guided-modes is demonstrated. Solutions are in good agreement with the benchmark results from film mode matching method, which tests the validity and utility of the present method. [Copyright &y& Elsevier]
- Subjects :
- *WAVEGUIDES
*ELECTRICAL conductors
*ELECTRIC waves
*ELECTROMAGNETIC waves
Subjects
Details
- Language :
- English
- ISSN :
- 00304018
- Volume :
- 266
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Optics Communications
- Publication Type :
- Academic Journal
- Accession number :
- 22596439
- Full Text :
- https://doi.org/10.1016/j.optcom.2006.05.027