Numerical analysis of directional coupling in dual-core microstructured optical fibers | Zendy

Philippe Di Bin | Zendy; Nicolas Mothe | Zendy

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Numerical analysis of directional coupling in dual-core microstructured optical fibers

Author(s) -

Philippe Di Bin,

Nicolas Mothe

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.015778

Subject(s) - optics , photonic crystal fiber , microstructured optical fiber , materials science , optical fiber , core (optical fiber) , coupling (piping) , beam propagation method , coupled mode theory , numerical analysis , zero dispersion wavelength , wavelength , hard clad silica optical fiber , graded index fiber , fiber , refractive index , physics , fiber optic sensor , composite material , mathematics , mathematical analysis

In this paper, we present a numerical analysis of the coupling coefficients in dual-core air-silica microstructured optical fibers with pi/6 symmetry. The calculations are based on an especially fitted application of the coupled mode theory for microstructured optical fibers. This method is compared with three other techniques, the supermode method, the beam propagation method and the equivalent fiber model, and is shown to be very computationally efficient. Our studies enable us to derive a formula linking the coupling coefficients to core separation according to the wavelength, the pitch and the hole diameter of the fiber structure.

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