Why Noise and Dispersion May Seriously Hamper Nonlinear Frequency-Division Multiplexing

The performance of optical fiber systems based on nonlinear frequency-division multiplexing (NFDM) or on more conventional transmission techniques is compared through numerical simulations. Some critical issues affecting NFDM systems-namely, the strict requirements needed to avoid burst interaction...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 29; no. 16; pp. 1332 - 1335
Main Authors Civelli, Stella, Forestieri, Enrico, Secondini, Marco
Format Journal Article
LanguageEnglish
Published New York IEEE 15.08.2017
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Boundary conditions
Bursting
Bursts
Complexity
Computer simulation
Computing time
Dispersion
Frequency division multiplexing
Niobium
nonlinear Fourier transform
nonlinear frequency division multiplexing
Nonlinear optics
Optical fiber communication
Optical receivers
Q-factor
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Summary:The performance of optical fiber systems based on nonlinear frequency-division multiplexing (NFDM) or on more conventional transmission techniques is compared through numerical simulations. Some critical issues affecting NFDM systems-namely, the strict requirements needed to avoid burst interaction due to signal dispersion and the unfavorable dependence of performance on burst length-are investigated, highlighting their potentially disruptive effect in terms of spectral efficiency. Two digital processing techniques are finally proposed to halve the guard time between NFDM symbol bursts and reduce the size of the processing window at the receiver, increasing spectral efficiency and reducing computational complexity.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2017.2722040