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Proceedings Paper

Design of reverse DMD multimode fibers
Author(s): Anton V. Bourdine
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Paper Abstract

Design of differential mode delay (DMD)-compensating silica GeO2-doped graded-index multimode fibers with reverse DMD, or so-called reverse DMD fibers (RDMDFs), is presented. DMD-compensating is based on assumption, that initial array of excited mode group velocities of compensated fiber should be reversed in reference to the slowest mode. It is proposed to obtain effect of reverse DMD by fiber profile optimization. Objective function is represented as a sum of squares of deviations between points, corresponding to radial mode orders, of ideal desired reverse group velocity diagram and diagram of current iteration. An extension of modified Gaussian approximation generalized for any order guided mode, propagating along weakly guiding optical fibers with an arbitrary axial-symmetric refractive index profiles, was developed to apply for design RDMDFs. Solution based on proposed method is described. Results of RDMDF design are presented, including optimized refractive index profiles and comparing results between desired ideal mode group velocity diagram and distribution of velocities between guided modes propagating along designed RDMDF.

Paper Details

Date Published: 2 May 2008
PDF: 14 pages
Proc. SPIE 7026, Optical Technologies for Telecommunications 2007, 702606 (2 May 2008); doi: 10.1117/12.801466
Show Author Affiliations
Anton V. Bourdine, Povolzhskaya State Academy of Telecommunications and Informatics (Russia)
CommunicationAutomationMounting Ltd. (Russia)


Published in SPIE Proceedings Vol. 7026:
Optical Technologies for Telecommunications 2007

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