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Analytical approximations for fundamental‐mode field and dispersion equation of planar waveguides through the Stevenson–Padé approach
Author(s) -
Galdi Vincenzo,
Fiumara Vincenzo,
Pierro Vincenzo,
Pinto Innocenzo M.
Publication year - 2000
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/1098-2760(20001105)27:3<158::aid-mop2>3.0.co;2-d
Subject(s) - planar , cladding (metalworking) , microwave , dispersion (optics) , mode (computer interface) , mathematical analysis , mathematics , field (mathematics) , optics , physics , materials science , computer science , quantum mechanics , computer graphics (images) , pure mathematics , operating system , metallurgy
A novel method for the systematic derivation of analytical approximations of the fundamental‐mode dispersion equation and field distribution of graded‐index planar waveguides with uniform cladding is presented. The method is based on a Stevenson–Padé approach, recently introduced by the authors for the numerical analysis of graded‐index optical fibers. A number of examples are presented in order to illustrate the power and accuracy of the method. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 27: 158–162, 2000.