Title page for ETD etd-3034112939721181

Type of Document Master's Thesis
Author Barake, Taha Mohamed
URN etd-3034112939721181
Title A Generalized Analysis of Multiple-Clad Fibers with Arbitrary Step-Indx Profiles and Applications
Degree Master of Science
Department Electrical and Computer Engineering
Advisory Committee
Advisor Name Title
Besieris, Ioannis M.
Johnson, Lee W.
Safaai-Jazi, Ahmad Committee Chair
  • multiple-clad fibers
  • dispersion-altered fibers
Date of Defense 1997-04-22
Availability unrestricted
A generalized analysis of multiple-clad

cylindrical dielectric structures with step-index

profiles is presented. This analysis yields unified

expressions for fields, dispersion equation and

cutoff conditions for weakly guiding optical

fibers with step-index but otherwise arbitrary

profiles. The formulation focuses on triple-clad

fibers, but can accommodate single and

double-clad fibers as special limiting cases.

Using the generalized solutions, transmission

properties of several types of specialty fibers

for broadband applications, including

dispersion-shifted, dispersion-flattened, and

dispersion compensating fibers, are studied.

Improved designs for dispersion-shifted and

dispersion compensating fibers are achieved.

Fiber parameters and material compositions for

the improved designs are provided. The

proposed design for the dispersion-shifted fiber

yields zero second-order as well as third-order

dispersion at the 1.55 micrometer wavelength.

The dispersion compensating fiber proposed

here provides a large negative dispersion of

about -400 ps/nm.km at the 1.55 micrometer

wavelength for the fundamental mode.

Numerical results for dispersion characteristics,

cutoff wavelengths, and radial field distributions

are provided.

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