Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/61388
Title: Fractional fourier transformation-based blind chromatic dispersion estimation for coherent optical communications
Authors: Zhou, H
Li, B
Tang, M
Zhong, K
Feng, Z
Cheng, J
Lau, APT 
Lu, C 
Fu, S
Shum, PP
Liu, D
Keywords: Coherent communications
Dispersion
Fiber optics communications
Fractional Fourier transformation
Issue Date: 2016
Publisher: Institute of Electrical and Electronics Engineers
Source: Journal of lightwave technology, 2016, v. 34, no. 10, 7426334, p. 2371-2380 How to cite?
Journal: Journal of lightwave technology 
Abstract: 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.
URI: http://hdl.handle.net/10397/61388
ISSN: 0733-8724
EISSN: 1558-2213
DOI: 10.1109/JLT.2016.2538467
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