Abstract
We numerically investigate ultra-short pulse propagation in multimode
optical fibers with launch peak powers approaching the critical power for
self-focusing using a generalized multimode nonlinear Schrödinger equation
approach. Nonlinear spatial and temporal effects combined with fiber dispersion
govern pulse compression in space and time which can result in damage-inducing
intensity levels. Here we identify pulse parameters for which damage is avoided
and high-power delivery through optical fiber is possible near the fiber zero-dispersion
wavelength.
© 2012 IEEE
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