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Description of ultrashort pulse propagation in multimode optical fibers

By Francesco Poletti and Peter Horak

Abstract

The guided, single-mode propagation of ultrashort optical pulses is commonly described by a well studied and understood generalized nonlinear Schrödinger equation. Here we present and discuss an extended version for multimode optical fibers and waveguides including polarization effects, high-order dispersion, Kerr and Raman nonlinearities, self-steepening effects, as well as wavelength-dependent mode coupling and nonlinear coefficients. We then investigate the symmetry properties of the nonlinear coupling coefficients for the cases of step-index and circularly symmetric conventional fibers and for microstructured fibers with hexagonal symmetry. Finally, we study the computational complexity of the proposed algorithm

Topics: QC, TK
Year: 2008
OAI identifier: oai:eprints.soton.ac.uk:65472
Provided by: e-Prints Soton
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