Title

Modal Fields Calculation Using the Finite Difference Beam Propagation Method

Abstract

A method is described to construct modal fields for an arbitrary one- or two-dimensional refractive index structure. An arbitrary starting field is propagated along a complex axis using the slowly varying envelope approximation (SVEA). By choosing suitable values for the step-size, one mode is maximally increased in amplitude on propagating, until convergence has been obtained. For the calculation of the next mode, the mode just found is filtered out, and the procedure starts again. The method is tested for one-dimensional refractive index structures, both for nonabsorbing and for absorbing structures, and is shown to give fast convergence. © 1994 IEEE.

Publication Date

1-1-1994

Publication Title

Journal of Lightwave Technology

Volume

12

Issue

12

Number of Pages

2066-2072

Document Type

Article

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/50.350626

Socpus ID

0028739548 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0028739548

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