TY - JOUR
T1 - Fractional Fourier Transformation-Based Blind Chromatic Dispersion Estimation for Coherent Optical Communications
AU - Zhou, Huibin
AU - Li, Borui
AU - Tang, Ming
AU - Zhong, Kangping
AU - Feng, Zhenhua
AU - Cheng, Jingchi
AU - Lau, Alan Pak Tao
AU - Lu, Chao
AU - Fu, Songnian
AU - Shum, Perry Ping
AU - Liu, Deming
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/3
Y1 - 2016/3
N2 - In this paper, we propose and demonstrate a blind chromatic dispersion (CD) estimation method based on fractional Fourier transformation (FrFT). Through numerical simulations, the proposed CD estimation method is shown to be robust against the amplified spontaneous emission noise and nonlinear interference. Only 2048 samples are required for reliable CD estimation for single-carrier 28 GBd DP-QPSK or 32 GBd DP-16QAM signals, and the standard deviation can be as low as 98.9 and 103.6 ps/nm, respectively. The feasibility of the proposed CD estimation method has been experimentally verified using 28 GBd DP-QPSK and 14 GBd DP-16QAM signals over various transmission distances with CD ranges of 46 332-77 220 ps/nm and 5148-51 480 ps/nm, respectively. Compared with some other CD estimation methods, the method based on FrFT has advantages in the aspects of less computation complexity and robustness to transmission impairments.
AB - In this paper, we propose and demonstrate a blind chromatic dispersion (CD) estimation method based on fractional Fourier transformation (FrFT). Through numerical simulations, the proposed CD estimation method is shown to be robust against the amplified spontaneous emission noise and nonlinear interference. Only 2048 samples are required for reliable CD estimation for single-carrier 28 GBd DP-QPSK or 32 GBd DP-16QAM signals, and the standard deviation can be as low as 98.9 and 103.6 ps/nm, respectively. The feasibility of the proposed CD estimation method has been experimentally verified using 28 GBd DP-QPSK and 14 GBd DP-16QAM signals over various transmission distances with CD ranges of 46 332-77 220 ps/nm and 5148-51 480 ps/nm, respectively. Compared with some other CD estimation methods, the method based on FrFT has advantages in the aspects of less computation complexity and robustness to transmission impairments.
KW - Coherent communications
KW - dispersion
KW - fiber optics communications
KW - fractional Fourier transformation
UR - https://www.scopus.com/pages/publications/84964547499
U2 - 10.1109/JLT.2016.2538467
DO - 10.1109/JLT.2016.2538467
M3 - Journal article
AN - SCOPUS:84964547499
SN - 0733-8724
VL - 34
SP - 2371
EP - 2380
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 10
M1 - 7426334
ER -