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Updated: Aug 24, 2026

Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
All propagation modes of large-core multimode optical fibers with an arbitrary core profile
Masashi Eguchi1, Suguru Horinouchi
1Department of Applied Photonics System Technology, Chitose Institute of Science and Technology, Chitose 066-8655, Japan. megu@paical.spub.chitose.ac.jp
Abstract:
Plastic optical fibers are typical large-core multimode optical fibers. High-bandwidth graded-index plastic optical fibers, which support a great number of propagation modes compared with conventional silica-glass multimode optical fibers, were developed in the 1990s. However, because they support a great number of propagation modes, their modal analyses have been limited to the WKB analysis. We obtain all the propagation modes of a convex-index large-core multimode optical fiber by use of the finite-element method, which has a strong advantage for arbitrary core profiles.
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