Abstract
We present a detailed analysis of the modal properties, dispersive behavior,
and nonlinear mode coupling in graded-index multimode fibers (GIMFs), and
lay out a simplified form of a generalized nonlinear Schrödinger equation,
which can be used to explore the rich nonlinear dynamics related to the propagation
and interaction of light pulses in GIMFs in a tractable manner. We also briefly
discuss an application of the presented formalism in the study of four-wave
mixing in these fibers. While the reported formalism is fairly general, our
presentation is mainly targeted at device applications in which short segments
of GIMFs are used.
© 2012 IEEE
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