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Updated: May 12, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
Random coupling between groups of degenerate fiber modes in mode multiplexed transmission
Cristian Antonelli1, Antonio Mecozzi, Mark Shtaif
1Dept. of Physical and Chemical Sciences, University of L’Aquila, 67100 L’Aquila, Italy. cristian.antonelli@univaq.it
Abstract:
We study random coupling induced crosstalk between groups of degenerate modes in spatially multiplexed optical transmission. Our analysis shows that the average crosstalk is primarily determined by the wavenumber mismatch, by the correlation length of the random perturbations, and by the coherence length of the degenerate modes, whereas the effect of a deterministic group velocity difference is negligible. The standard deviation of the crosstalk is shown to be comparable to its average value, implying that crosstalk measurements are inherently noisy.
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