Pulse confinement in optical fibers with random dispersion

Details Pulse confinement in optical fibers with random dispersion Pulse confinement in optical fibers with random dispersion

2000-11-22

arxiv.org/abs/nlin/0011043v1

Nonlinear Sciences

Chaotic Dynamics

4 pages, 2 figures

Scientific paper

10.1073/pnas.241494198

Short range correlated uniform noise in the dispersion coefficient, inherent in many types of optical fibers, broadens and eventually destroys all initially ultra-short pulses. However, under the constraint that the integral of the random component of the dispersion coefficient is set to zero, or pinned, periodically or quasi-periodically along the fiber, the nature of the pulse propagation changes dramatically. For the case that randomness is added to constant positive dispersion, the pinning restriction significantly reduces pulse broadening. If the randomness is added to piecewise constant periodic dispersion, the pinning may even provide probability distributions of pulse parameters that are numerically indistinguishable from the statistically steady case. The pinning method can be used to both manufacture better fibers and upgrade existing fiber links.

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