Phase noise cancellation in coherent communication systems using a radio frequency pilot tone

Tianhua Xu; Cenqin Jin; Shuqing Zhang; Gunnar Jacobsen; Sergei Popov; Mark Leeson; Tiegen Liu

doi:10.3390/app9214717

Phase noise cancellation in coherent communication systems using a radio frequency pilot tone

Tianhua Xu
, Cenqin Jin
, Shuqing Zhang
, Gunnar Jacobsen
, Sergei Popov
, Mark Leeson
, Tiegen Liu^*

^*Corresponding author for this work

School of Astronautics

Tianjin University
University of Warwick
University College London
RISE Research Institutes of Sweden
KTH Royal Institute of Technology

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

4 Scopus citations

Abstract

Long-haul optical fiber communication employing digital signal processing (DSP)-based dispersion compensation can be distorted by the phenomenon of equalization-enhanced phase noise (EEPN), due to the reciprocities between the dispersion compensation unit and the local oscillator (LO) laser phase noise (LPN). The impact of EEPN scales increases with the increase of the fiber dispersion, laser linewidths, symbol rates, signal bandwidths, and the order of modulation formats. In this work, the phase noise cancellation (PNC) employing a radio frequency (RF) pilot tone in coherent optical transmission systems has been investigated. A 28-Gsym/s QPSK optical transmission system with a significant EEPN has been implemented, where the carrier phase recovery (CPR) was realized using the one-tap normalized least-mean-square (NLMS) estimation and the differential phase detection (DPD), respectively. It is shown that the RF pilot tone can entirely eliminate the LPN and efficiently suppress the EEPN when it is applied prior to the CPR.

Original language	English
Article number	4717
Journal	Applied Sciences (Switzerland)
Volume	9
Issue number	21
DOIs	https://doi.org/10.3390/app9214717
State	Published - 1 Nov 2019

Keywords

carrier phase recovery (CPR)
coherent optical fiber communication
equalization enhanced phase noise (EEPN)
laser phase noise (LPN)
phase noise cancellation (PNC)
radio frequency (RF) pilot tone

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10.3390/app9214717

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@article{fc44a10e1cee415ba899f5fd58ebba66,

title = "Phase noise cancellation in coherent communication systems using a radio frequency pilot tone",

abstract = "Long-haul optical fiber communication employing digital signal processing (DSP)-based dispersion compensation can be distorted by the phenomenon of equalization-enhanced phase noise (EEPN), due to the reciprocities between the dispersion compensation unit and the local oscillator (LO) laser phase noise (LPN). The impact of EEPN scales increases with the increase of the fiber dispersion, laser linewidths, symbol rates, signal bandwidths, and the order of modulation formats. In this work, the phase noise cancellation (PNC) employing a radio frequency (RF) pilot tone in coherent optical transmission systems has been investigated. A 28-Gsym/s QPSK optical transmission system with a significant EEPN has been implemented, where the carrier phase recovery (CPR) was realized using the one-tap normalized least-mean-square (NLMS) estimation and the differential phase detection (DPD), respectively. It is shown that the RF pilot tone can entirely eliminate the LPN and efficiently suppress the EEPN when it is applied prior to the CPR.",

keywords = "carrier phase recovery (CPR), coherent optical fiber communication, equalization enhanced phase noise (EEPN), laser phase noise (LPN), phase noise cancellation (PNC), radio frequency (RF) pilot tone",

author = "Tianhua Xu and Cenqin Jin and Shuqing Zhang and Gunnar Jacobsen and Sergei Popov and Mark Leeson and Tiegen Liu",

note = "Publisher Copyright: {\textcopyright} 2019 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2019",

month = nov,

day = "1",

doi = "10.3390/app9214717",

language = "英语",

volume = "9",

journal = "Applied Sciences (Switzerland)",

issn = "2076-3417",

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TY - JOUR

T1 - Phase noise cancellation in coherent communication systems using a radio frequency pilot tone

AU - Xu, Tianhua

AU - Jin, Cenqin

AU - Zhang, Shuqing

AU - Jacobsen, Gunnar

AU - Popov, Sergei

AU - Leeson, Mark

AU - Liu, Tiegen

PY - 2019/11/1

Y1 - 2019/11/1

N2 - Long-haul optical fiber communication employing digital signal processing (DSP)-based dispersion compensation can be distorted by the phenomenon of equalization-enhanced phase noise (EEPN), due to the reciprocities between the dispersion compensation unit and the local oscillator (LO) laser phase noise (LPN). The impact of EEPN scales increases with the increase of the fiber dispersion, laser linewidths, symbol rates, signal bandwidths, and the order of modulation formats. In this work, the phase noise cancellation (PNC) employing a radio frequency (RF) pilot tone in coherent optical transmission systems has been investigated. A 28-Gsym/s QPSK optical transmission system with a significant EEPN has been implemented, where the carrier phase recovery (CPR) was realized using the one-tap normalized least-mean-square (NLMS) estimation and the differential phase detection (DPD), respectively. It is shown that the RF pilot tone can entirely eliminate the LPN and efficiently suppress the EEPN when it is applied prior to the CPR.

AB - Long-haul optical fiber communication employing digital signal processing (DSP)-based dispersion compensation can be distorted by the phenomenon of equalization-enhanced phase noise (EEPN), due to the reciprocities between the dispersion compensation unit and the local oscillator (LO) laser phase noise (LPN). The impact of EEPN scales increases with the increase of the fiber dispersion, laser linewidths, symbol rates, signal bandwidths, and the order of modulation formats. In this work, the phase noise cancellation (PNC) employing a radio frequency (RF) pilot tone in coherent optical transmission systems has been investigated. A 28-Gsym/s QPSK optical transmission system with a significant EEPN has been implemented, where the carrier phase recovery (CPR) was realized using the one-tap normalized least-mean-square (NLMS) estimation and the differential phase detection (DPD), respectively. It is shown that the RF pilot tone can entirely eliminate the LPN and efficiently suppress the EEPN when it is applied prior to the CPR.

KW - carrier phase recovery (CPR)

KW - coherent optical fiber communication

KW - equalization enhanced phase noise (EEPN)

KW - laser phase noise (LPN)

KW - phase noise cancellation (PNC)

KW - radio frequency (RF) pilot tone

UR - https://www.scopus.com/pages/publications/85075191817

U2 - 10.3390/app9214717

DO - 10.3390/app9214717

M3 - 文章

AN - SCOPUS:85075191817

SN - 2076-3417

VL - 9

JO - Applied Sciences (Switzerland)

JF - Applied Sciences (Switzerland)

IS - 21

M1 - 4717

ER -

Phase noise cancellation in coherent communication systems using a radio frequency pilot tone

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Keywords

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