Open AccessFast and blind chromatic dispersion estimation with one sample per symbol
Author(s) -
Jingchuan Wang,
Zexin Chen,
Songnian Fu,
Yuncai Wang,
Yuwen Qin
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.418500
Subject(s) - optics , amplified spontaneous emission , quadrature amplitude modulation , dispersion (optics) , modulation (music) , transmission (telecommunications) , single mode optical fiber , polarization mode dispersion , physics , materials science , optical fiber , telecommunications , computer science , bit error rate , decoding methods , acoustics , laser
We propose a fast and blind chromatic dispersion (CD) estimation method by one sample per symbol after coherent detection. The CD estimation process is non-data aided, without the iterative scanning to obtain the CD values. Moreover, we identify that the proposed CD estimation method is transparent to the used modulation format and robust to the transmission impairments, including amplified spontaneous emission (ASE) noise and fiber nonlinearity. When the 35-GBaud DP-16QAM signal with a roll-off factor of 0.1 is transmitted over standard single mode fiber (SSMF) with a range from 320-km to 560-km, the error of CD estimation is less than 150-ps/nm under the condition of 8192 symbols used.