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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 6, Iss. 4 — Apr. 1, 1989
  • pp: 555–563

Modal characteristics of three-layered optical fiber waveguides: a modified approach

Charles Y. H. Tsao, David N. Payne, and W. Alec Gambling  »View Author Affiliations

JOSA A, Vol. 6, Issue 4, pp. 555-563 (1989)

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By invoking Debye potentials, we formulate exact eigenvalue equations and the corresponding field distributions for general, three-layered, radially stratified, dielectric, and nonferromagnetic metal, optical fibers. By using cross products of Bessel functions, which may be regarded as the basic functional elements of the eigenvalue equations, a comparison is made between the properties of a three-layer structure and a simple step-index profile, and a simple graphical solution is obtained. The technique is applied to several practical structures, including two-layer fibers having a central index depression in the core, ring-core fibers, W fibers, and progressively stepped three-layered structures. The mathematical procedure is simple, and the results are of interest to optical fiber designers.

© 1989 Optical Society of America

Original Manuscript: May 23, 1988
Manuscript Accepted: December 22, 1988
Published: April 1, 1989

Charles Y. H. Tsao, David N. Payne, and W. Alec Gambling, "Modal characteristics of three-layered optical fiber waveguides: a modified approach," J. Opt. Soc. Am. A 6, 555-563 (1989)

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