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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 16, Iss. 8 — Aug. 1, 1977
  • pp: 2171–2174

Effect of the cladding on pulse broadening in graded-index optical waveguides

Robert Olshansky  »View Author Affiliations


Applied Optics, Vol. 16, Issue 8, pp. 2171-2174 (1977)
http://dx.doi.org/10.1364/AO.16.002171


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Abstract

The WKB analysis is extended to take into account the discontinuity in index profile shape that occurs at the core-cladding boundary of graded-index optical waveguides. The presence of the cladding introduces a large correction to the delay times of the highest 5% of the guided modes and greatly increases the predicted rms pulse broadening of a parabolic profile fiber. Using a model of differential mode attenuation, it is shown that these highest order modes are very susceptible to attenuation. A small degree of waveguide irregularity restores the low pulse broadening originally predicted for a parabolic fiber.

© 1977 Optical Society of America

History
Original Manuscript: January 3, 1977
Published: August 1, 1977

Citation
Robert Olshansky, "Effect of the cladding on pulse broadening in graded-index optical waveguides," Appl. Opt. 16, 2171-2174 (1977)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-16-8-2171

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