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Bidirectional finite-element method-of-line beam propagation method (FE-MoL-BPM) for analyzing optical waveguides with discontinuities

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5 Author(s)
Kawano, K. ; NTT Opto-Electron. Labs., Kanagawa, Japan ; Kitoh, T. ; Kohtoku, M. ; Ito, T.
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A bidirectional finite-element method-of-line beam propagation method (FE-MoL-BPM) is newly proposed for analyzing optical waveguides with discontinuities including transmissions, reflections and radiations. In this approach, the finite-element method (FEM) is introduced to discretize the derivatives of the variable perpendicular to the propagation direction. Since the proposed method is accurate and stable, only a small number of nodal points are required.

Published in:

Photonics Technology Letters, IEEE  (Volume:10 ,  Issue: 2 )