In-Band Crosstalk Transmission Penalties on 112-Gb/s PDM-QPSK Optical Links

We demonstrate a method of quantifying the penalty of in-band crosstalk that accounts for the varying spectral content. Experimentally evaluated penalties for widely varying crosstalk spectral content are shown to be readily predetermined based on the crosstalk spectral content and power within a si...

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Bibliographic Details
Published in:IEEE photonics technology letters 2011-06, Vol.23 (11), p.745-747
Main Authors: Yu-Ting Hsueh, Stark, A, Filer, M, Detwiler, T, Tibuleac, S, Gee-Kung Chang, Ralph, S E
Format: Article
Language:English
Subjects:
Band pass filters
Conferences
Crosstalk
Dispersions
Fiber optics
Links
Optical communication
Optical fiber filters
Optical fiber networks
Optical fibers
Optical noise
optical signal-to-noise ratio (OSNR)
Optical switches
polarization-division multiplexing (PDM)
quadrature phase-shift keying (QPSK)
reconfigurable optical add-drop multiplexer (ROADM)
Signal to noise ratio
Spectra
wavelength selective switch (WSS)
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Summary:We demonstrate a method of quantifying the penalty of in-band crosstalk that accounts for the varying spectral content. Experimentally evaluated penalties for widely varying crosstalk spectral content are shown to be readily predetermined based on the crosstalk spectral content and power within a single 112 Gb/s polarization-division multiplexing quadrature phase-shift keying (PDM-QPSK) link. Optical signal-to-noise ratio (OSNR) penalties predicted using a weighted crosstalk correlated with experimental results to within 1 dB for 8 spans AllWave [standard single-mode fiber (SSMF)] or TrueWave [nonzero dispersion fiber (NZDF)] links with different dispersion maps. Moreover, we identify a nonlinearity-enhanced crosstalk effect that is evident in the nonlinear transport regime and induce additional crosstalk-induced ONSR penalty.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2011.2132700