Journal
OPTICS EXPRESS
Volume 21, Issue 8, Pages 9484-9490Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.009484
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Funding
- Alcatel-Lucent
- Israel Science Foundation [737/12]
- Italian Ministry of University and Research
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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. (C) 2013 Optical Society of America
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