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New technique for finite difference analysis of optical waveguide problems

✍ Scribed by M. A. Matin; T. M. Benson; P. C. Kendall; M. S. Stern

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
510 KB
Volume
7
Category
Article
ISSN
0894-3370

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✦ Synopsis

Abstract

The method of effective penetration depth is used to produce a novel scalar or polarized finite difference approach for the solution of optical rib waveguide field problems. The new method is quicker than previous finite difference approaches and requires less computer memory. Propagation constant values are presented for a range of semiconductor rib waveguides and are found to be indistinguishable from benchmark results produced using earlier methods of analysis. A simple polarization correction formula recently derived is confirmed by utilizing the good accuracy of these results. This enables discussion of the relationship between quasi‐TE, quasi‐TM and scalar modes, and a further substantial reduction of the cpu time.

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