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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 31 — Nov. 1, 2009
  • pp: G156–G162

Propagation characteristics of single-mode graded-index elliptical core linear and nonlinear fiber using super-Gaussian approximation

Sunil K. Khijwania, Veena M. Nair, and Somenath Sarkar  »View Author Affiliations

Applied Optics, Vol. 48, Issue 31, pp. G156-G162 (2009)

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A rigorous, much simplified, and accurate analysis of the modal field characteristics such as propagation constants, mode power confinement, delay and dispersion characteristics of a single-mode graded-index elliptical core fiber is presented applying a variational method and super-Gaussian approximation of the fundamental modal field. Normalized propagation constants, a fundamental parameter to evaluate other modal characteristics, obtained through this method showed a greater accuracy over the entire range of practical interest in comparison with other reported methods. The effects of various aspect ratios on these characteristics are analyzed. In addition, the effect of Kerr nonlinearity on these characteristics is investigated using the reported method, and a comparison is made with the linear results.

© 2009 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2400) Fiber optics and optical communications : Fiber properties

Original Manuscript: June 16, 2009
Revised Manuscript: October 8, 2009
Manuscript Accepted: October 9, 2009
Published: October 28, 2009

Sunil K. Khijwania, Veena M. Nair, and Somenath Sarkar, "Propagation characteristics of single-mode graded-index elliptical core linear and nonlinear fiber using super-Gaussian approximation," Appl. Opt. 48, G156-G162 (2009)

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