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Proceedings Paper

A full-vectorial mode solver for bending waveguides by a modified finite difference method based on E-fields in cylindrical coordinate systems
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Paper Abstract

A full-vector mode solver for optical dielectric waveguide bends by using an improved finite difference method in terms of transverse-electric field components is developed in a local cylindrical coordinate system. A six-point finite difference scheme is constructed to approximate the cross-coupling terms for improving the convergent behavior, and the perfectly matched layer absorbing boundary conditions via the complex coordinate stretching technique are used for effectively demonstrating the leaky nature of the waveguide bends. The fundamental leaky modes for a typical bending rib waveguide are computed, which shows the validity and utility of the established method.

Paper Details

Date Published: 17 May 2010
PDF: 9 pages
Proc. SPIE 7719, Silicon Photonics and Photonic Integrated Circuits II, 771922 (17 May 2010); doi: 10.1117/12.858547
Show Author Affiliations
Jinbiao Xiao, Southeast Univ. (China)
Xiaohan Sun, Southeast Univ. (China)

Published in SPIE Proceedings Vol. 7719:
Silicon Photonics and Photonic Integrated Circuits II
Giancarlo Cesare Righini, Editor(s)

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