Abstract

Plastic optical fibers that are a typical large-core multimode optical fiber support a great number of modes compared with conventional silica-glass multimode optical fibers. So far the WKB method has been used for most of the modal analyses of these fibers because of a great number of guided modes. We describe the accurate eigenmodal analysis of large-core multimode optical fibers with the finite-element method (FEM) and compute the propagation constants of all LP modes. In addition, the FEM has a strong advantage for arbitrary core profiles whereas the WKB method is not suitable for nonmonotonic profiles. To demonstrate the advantage, we apply the FEM to the fiber having sinusoidal fluctuations.

© 2004 Optical Society of America

All propagation modes of large-core multimode optical fibers with an arbitrary core profile

Masashi Eguchi and Suguru Horinouchi
Opt. Lett. 29(10) 1051-1053 (2004)

Finite-element modal analysis of multistep-index large-core multimode fibers

Masashi Eguchi
J. Opt. Soc. Am. B 27(7) 1464-1474 (2010)

Numerical analysis of modal dispersion in graded-index plastic optical fibers

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Appl. Opt. 44(26) 5544-5548 (2005)

Finite-element modal analysis of large-core multimode optical fibers: erratum

Masashi Eguchi and Suguru Horinouchi
Appl. Opt. 43(15) 3158-3158 (2004)

Full vectorial modal analysis of specialty fibers and their Bragg grating characterization

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