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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 9 — Mar. 20, 2007
  • pp: 1477–1481

Method for calculating the coupling coefficient in step-index optical fibers

Svetislav Savović and Alexandar Djordjevich  »View Author Affiliations


Applied Optics, Vol. 46, Issue 9, pp. 1477-1481 (2007)
http://dx.doi.org/10.1364/AO.46.001477


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Abstract

A simple method is proposed for determining the mode coupling coefficient D in step-index multimode optical fibers. It only requires observation of the far-field output pattern for one fiber length with the input light launched centrally along the fiber axis ( θ 0 = 0 ) . For illustration, the coupling coefficient determined by this simple method for a step-index plastic optical fiber was used to calculate the coupling length L c at which the equilibrium mode distribution is achieved, and length z s at which the steady-state distribution is achieved. Our results are in good agreement with experimental results reported earlier.

© 2007 Optical Society of America

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

History
Original Manuscript: July 17, 2006
Revised Manuscript: November 2, 2006
Manuscript Accepted: November 10, 2006
Published: March 1, 2007

Citation
Svetislav Savović and Alexandar Djordjevich, "Method for calculating the coupling coefficient in step-index optical fibers," Appl. Opt. 46, 1477-1481 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-9-1477

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