Joint monitoring of chromatic dispersion, OSNR and inter-channel nonlinearity by LFM pilot

Aiying Yang; Peng Guo; Wanli Wang; Yueming Lu; Yaojun Qiao

doi:10.1016/j.optlastec.2018.10.021

Joint monitoring of chromatic dispersion, OSNR and inter-channel nonlinearity by LFM pilot

Aiying Yang^*, Peng Guo, Wanli Wang, Yueming Lu, Yaojun Qiao

^*Corresponding author for this work

School of Optics and Photonics

Beijing University of Posts and Telecommunications

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A novel joint monitoring method is proposed for dynamic and reconfigurable optical transmission systems to estimate chromatic dispersion (CD), optical signal-to-noise ratio (OSNR) and inter-channel nonlinearity (NL) simultaneously. This method utilizes two linear-frequency modulation (LFM) pilots with different center frequencies at two polarizations. The CD is estimated by the peak position difference of two pilots in fractional domain. Compare to previous work of CD estimation, the monitoring precision of CD is improved by zero padding at the receiver. The OSNR and the inter-channel NL are obtained in frequency and fractional domain. By verification of 9-channel 28 GBaud wavelength division multiplexing QPSK and 16QAM systems after 1000 km transmission, it proves that this method achieves stable CD (<200 ps/nm error), nonlinearity tolerant OSNR and accurate inter-channel NL (<1 dB error) monitoring.

Original language	English
Pages (from-to)	447-451
Number of pages	5
Journal	Optics and Laser Technology
Volume	111
DOIs	https://doi.org/10.1016/j.optlastec.2018.10.021
Publication status	Published - Apr 2019

Keywords

Fiber non-linear optics
Fiber optics systems
Metrology

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10.1016/j.optlastec.2018.10.021

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title = "Joint monitoring of chromatic dispersion, OSNR and inter-channel nonlinearity by LFM pilot",

abstract = "A novel joint monitoring method is proposed for dynamic and reconfigurable optical transmission systems to estimate chromatic dispersion (CD), optical signal-to-noise ratio (OSNR) and inter-channel nonlinearity (NL) simultaneously. This method utilizes two linear-frequency modulation (LFM) pilots with different center frequencies at two polarizations. The CD is estimated by the peak position difference of two pilots in fractional domain. Compare to previous work of CD estimation, the monitoring precision of CD is improved by zero padding at the receiver. The OSNR and the inter-channel NL are obtained in frequency and fractional domain. By verification of 9-channel 28 GBaud wavelength division multiplexing QPSK and 16QAM systems after 1000 km transmission, it proves that this method achieves stable CD (<200 ps/nm error), nonlinearity tolerant OSNR and accurate inter-channel NL (<1 dB error) monitoring.",

keywords = "Fiber non-linear optics, Fiber optics systems, Metrology",

author = "Aiying Yang and Peng Guo and Wanli Wang and Yueming Lu and Yaojun Qiao",

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year = "2019",

month = apr,

doi = "10.1016/j.optlastec.2018.10.021",

language = "English",

volume = "111",

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journal = "Optics and Laser Technology",

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T1 - Joint monitoring of chromatic dispersion, OSNR and inter-channel nonlinearity by LFM pilot

AU - Yang, Aiying

AU - Guo, Peng

AU - Wang, Wanli

AU - Lu, Yueming

AU - Qiao, Yaojun

PY - 2019/4

Y1 - 2019/4

N2 - A novel joint monitoring method is proposed for dynamic and reconfigurable optical transmission systems to estimate chromatic dispersion (CD), optical signal-to-noise ratio (OSNR) and inter-channel nonlinearity (NL) simultaneously. This method utilizes two linear-frequency modulation (LFM) pilots with different center frequencies at two polarizations. The CD is estimated by the peak position difference of two pilots in fractional domain. Compare to previous work of CD estimation, the monitoring precision of CD is improved by zero padding at the receiver. The OSNR and the inter-channel NL are obtained in frequency and fractional domain. By verification of 9-channel 28 GBaud wavelength division multiplexing QPSK and 16QAM systems after 1000 km transmission, it proves that this method achieves stable CD (<200 ps/nm error), nonlinearity tolerant OSNR and accurate inter-channel NL (<1 dB error) monitoring.

AB - A novel joint monitoring method is proposed for dynamic and reconfigurable optical transmission systems to estimate chromatic dispersion (CD), optical signal-to-noise ratio (OSNR) and inter-channel nonlinearity (NL) simultaneously. This method utilizes two linear-frequency modulation (LFM) pilots with different center frequencies at two polarizations. The CD is estimated by the peak position difference of two pilots in fractional domain. Compare to previous work of CD estimation, the monitoring precision of CD is improved by zero padding at the receiver. The OSNR and the inter-channel NL are obtained in frequency and fractional domain. By verification of 9-channel 28 GBaud wavelength division multiplexing QPSK and 16QAM systems after 1000 km transmission, it proves that this method achieves stable CD (<200 ps/nm error), nonlinearity tolerant OSNR and accurate inter-channel NL (<1 dB error) monitoring.

KW - Fiber non-linear optics

KW - Fiber optics systems

KW - Metrology

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DO - 10.1016/j.optlastec.2018.10.021

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SN - 0030-3992

VL - 111

SP - 447

EP - 451

JO - Optics and Laser Technology

JF - Optics and Laser Technology

ER -

Joint monitoring of chromatic dispersion, OSNR and inter-channel nonlinearity by LFM pilot

Abstract

Keywords

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