Joint OSNR and interchannel nonlinearity estimation method based on fractional fourier transform

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

doi:10.1109/JLT.2017.2744666

Joint OSNR and interchannel nonlinearity estimation method based on fractional fourier transform

Wanli Wang
, Aiying Yang^*
, Peng Guo
, 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

38 Citations (Scopus)

Abstract

We propose a novel joint optical signal noise ratio (OSNR) and interchannel nonlinearity (NL) estimation method by fractional Fourier transformation of linear-frequency modulation (LFM) signal. In our method, LFM signal acts as time domain pilot in front of the payload. Our method of OSNR estimation is insensitive to nonlinear noise of optical fiber. Lower OSNR estimation error is also achieved in comparison with differential pilotmethod. The interchannel NL measurement procedures are also simplified compared with previous work. We also provide a scientific way to calculate the reference interchannel NL. The interchannel NL estimation error of our method is lower than 1 dB for 9 channels transmission after 10 spans with launch power from 10 to 14 dBm.

Original language	English
Article number	8016560
Pages (from-to)	4497-4506
Number of pages	10
Journal	Journal of Lightwave Technology
Volume	35
Issue number	20
DOIs	https://doi.org/10.1109/JLT.2017.2744666
Publication status	Published - 15 Oct 2017

Keywords

Fiber non-linear optics
Fiber optics systems
Metrology

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10.1109/JLT.2017.2744666

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title = "Joint OSNR and interchannel nonlinearity estimation method based on fractional fourier transform",

abstract = "We propose a novel joint optical signal noise ratio (OSNR) and interchannel nonlinearity (NL) estimation method by fractional Fourier transformation of linear-frequency modulation (LFM) signal. In our method, LFM signal acts as time domain pilot in front of the payload. Our method of OSNR estimation is insensitive to nonlinear noise of optical fiber. Lower OSNR estimation error is also achieved in comparison with differential pilotmethod. The interchannel NL measurement procedures are also simplified compared with previous work. We also provide a scientific way to calculate the reference interchannel NL. The interchannel NL estimation error of our method is lower than 1 dB for 9 channels transmission after 10 spans with launch power from 10 to 14 dBm.",

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

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

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.",

year = "2017",

month = oct,

day = "15",

doi = "10.1109/JLT.2017.2744666",

language = "English",

volume = "35",

pages = "4497--4506",

journal = "Journal of Lightwave Technology",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - Joint OSNR and interchannel nonlinearity estimation method based on fractional fourier transform

AU - Wang, Wanli

AU - Yang, Aiying

AU - Guo, Peng

AU - Lu, Yueming

AU - Qiao, Yaojun

PY - 2017/10/15

Y1 - 2017/10/15

N2 - We propose a novel joint optical signal noise ratio (OSNR) and interchannel nonlinearity (NL) estimation method by fractional Fourier transformation of linear-frequency modulation (LFM) signal. In our method, LFM signal acts as time domain pilot in front of the payload. Our method of OSNR estimation is insensitive to nonlinear noise of optical fiber. Lower OSNR estimation error is also achieved in comparison with differential pilotmethod. The interchannel NL measurement procedures are also simplified compared with previous work. We also provide a scientific way to calculate the reference interchannel NL. The interchannel NL estimation error of our method is lower than 1 dB for 9 channels transmission after 10 spans with launch power from 10 to 14 dBm.

AB - We propose a novel joint optical signal noise ratio (OSNR) and interchannel nonlinearity (NL) estimation method by fractional Fourier transformation of linear-frequency modulation (LFM) signal. In our method, LFM signal acts as time domain pilot in front of the payload. Our method of OSNR estimation is insensitive to nonlinear noise of optical fiber. Lower OSNR estimation error is also achieved in comparison with differential pilotmethod. The interchannel NL measurement procedures are also simplified compared with previous work. We also provide a scientific way to calculate the reference interchannel NL. The interchannel NL estimation error of our method is lower than 1 dB for 9 channels transmission after 10 spans with launch power from 10 to 14 dBm.

KW - Fiber non-linear optics

KW - Fiber optics systems

KW - Metrology

UR - https://www.scopus.com/pages/publications/85028522744

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DO - 10.1109/JLT.2017.2744666

M3 - Article

AN - SCOPUS:85028522744

SN - 0733-8724

VL - 35

SP - 4497

EP - 4506

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

IS - 20

M1 - 8016560

ER -

Joint OSNR and interchannel nonlinearity estimation method based on fractional fourier transform

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