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Proceedings Paper

A novel method for chromatic dispersion estimation with lower computation complexity in fractional domain
Author(s): Yiwen Ma; Peng Guo; Aiying Yang; Yueming Lu; Yaojun Qiao
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Paper Abstract

The optimal order in fractional Fourier transform (FrFT) can be used to estimate chromatic dispersion (CD) and nonlinearity in an optical fiber transmission system. In this paper, we propose a novel method to estimate CD with lower computation complexity in fractional domain. The computation complexity can be reduced by 103 times with the same measurement accuracy compared with one step method when the number of samples is 8192 and search step is 0.0001. The correctness of the novel method for optimal order searching is proved by chirp parameter estimation for linear frequency modulation (LFM) signals. The measurement relative error is only 0.02%. For CD estimation, the maximum estimation error ratio is 0.338% and 0.564% for 28Gbit/s quadrature phase-shift keying (QPSK) and 16 quadrature amplitude modulation (16QAM) optical fiber transmission systems over 100 km~2000 km SSMF.

Paper Details

Date Published: 10 January 2018
PDF: 7 pages
Proc. SPIE 10617, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, 1061708 (10 January 2018); doi: 10.1117/12.2293218
Show Author Affiliations
Yiwen Ma, Beijing Univ. of Posts and Telecommunications (China)
Peng Guo, Beijing Institute of Technology (China)
Aiying Yang, Beijing Institute of Technology (China)
Yueming Lu, Beijing Univ. of Posts and Telecommunications (China)
Yaojun Qiao, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 10617:
2017 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing
Liquan Dong; Yi Dong; Jian Chen; Fabien Bretenaker, Editor(s)

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