QPSK Training Sequence-Based Both OSNR and Chromatic Dispersion Monitoring in DWDM Systems

We design a quadrature phase-shift keying training sequence (QPSK-TS) for monitoring both optical signal-to-noise ratio (OSNR) and chromatic dispersion (CD) in a dense wavelength division multiplexing (DWDM) system. By applying fast Fourier transform on the QPSK-TS, a comb-like spectrum with discret...

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Bibliographic Details
Main Authors: Feilong Wu, Aiying Yang, Peng Guo, Yaojun Qiao, Lingwei Zhuang, Shaojian Guo
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8424439/
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