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Multi-Impairment Monitoring at 320 Gb/s Based on Cross-Phase Modulation Radio-Frequency Spectrum Analyzer

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5 Author(s)
Vo, T.D. ; Centre of Ultrahigh Bandwidth Devices for Opt. Syst. (CUDOS), Univ. of Sydney, Sydney, NSW, Australia ; Pelusi, M.D. ; Schroder, J. ; Corcoran, B.
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We introduce a scheme for multi-impairment performance monitoring at ultrahigh bit rates based on cross-phase modulation (XPM) in a nonlinear waveguide. We demonstrate that we can simultaneously monitor in-band optical signal-to-noise ratio and group velocity dispersion at bit rates of 320 Gb/s (return-to-zero format) from a single measurement. Our approach retrieves the autocorrelation of the signal via the radio-frequency (RF) spectrum, which is captured with an XPM-based RF spectrum analyzer in a highly nonlinear fiber.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 6 )