Nonlinearity compensation using optical phase conjugation deployed in discretely amplified transmission systems

Mohammad Al-Khateeb; Mary E. McCarthy; Christian Sánchez; Andrew D. Ellis

doi:10.1364/OE.26.023945

Nonlinearity compensation using optical phase conjugation deployed in discretely amplified transmission systems

Mohammad Al-Khateeb, Mary E. McCarthy, Christian Sánchez, Andrew D. Ellis

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

Abstract

We introduce a closed form equation, validated by simulations and experimental
results, that predicts the residual nonlinear noise ratio in mid-link OPC assisted discretely amplified systems. The model anticipates the reduction in performance enhancement achieved by mid-link OPC as the bandwidth of the modulated signals increases. The numerical analysis shows that uncompensated signal-signal interactions limit the performance improvement achieved by the introduction of additional OPCs. The numerical analysis predicts that the deployment of shorter amplifier spacing will lead to a greater performance enhancement. The numerical results are validated by experimentally testing of 2x, 4x, and 8x28Gbaud PM-QPSK systems with mid-link OPC compensation in a discretely amplified system with 100km amplifier spacing. The experimentally obtained reach enhancement (43%, 32%, and 24% for 2x28Gbaud, 4x28Gbaud, and 8x28Gbaud, respectively) confirms that the compensation efficiency of mid-link OPC is highly dependent on the number of channels (bandwidth) propagating along the system.

Original language	English
Pages (from-to)	23945-23959
Journal	Optics Express
Volume	26
Issue number	18
DOIs	https://doi.org/10.1364/OE.26.023945
Publication status	Published - 31 Aug 2018

Bibliographical note

Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Funding: EPSRC EP/J017582/1 [UNLOC]; EP/L000091/1; H2020 659950 [INVENTION].

Keywords

Optical communications
Phase conjugation
Nonlinear optics
Fibers

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10.1364/OE.26.023945

Nonlinearity compensation using optical phase conjugation
Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Final published version, 4.98 MBLicence: CC BY 3.0

Cite this

@article{1c46957e86c4446e96b07a2cfd2d138f,

title = "Nonlinearity compensation using optical phase conjugation deployed in discretely amplified transmission systems",

abstract = "We introduce a closed form equation, validated by simulations and experimentalresults, that predicts the residual nonlinear noise ratio in mid-link OPC assisted discretely amplified systems. The model anticipates the reduction in performance enhancement achieved by mid-link OPC as the bandwidth of the modulated signals increases. The numerical analysis shows that uncompensated signal-signal interactions limit the performance improvement achieved by the introduction of additional OPCs. The numerical analysis predicts that the deployment of shorter amplifier spacing will lead to a greater performance enhancement. The numerical results are validated by experimentally testing of 2x, 4x, and 8x28Gbaud PM-QPSK systems with mid-link OPC compensation in a discretely amplified system with 100km amplifier spacing. The experimentally obtained reach enhancement (43%, 32%, and 24% for 2x28Gbaud, 4x28Gbaud, and 8x28Gbaud, respectively) confirms that the compensation efficiency of mid-link OPC is highly dependent on the number of channels (bandwidth) propagating along the system. ",

keywords = "Optical communications, Phase conjugation, Nonlinear optics, Fibers",

author = "Mohammad Al-Khateeb and McCarthy, {Mary E.} and Christian S{\'a}nchez and Ellis, {Andrew D.}",

note = "Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funding: EPSRC EP/J017582/1 [UNLOC]; EP/L000091/1; H2020 659950 [INVENTION].",

year = "2018",

month = aug,

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doi = "10.1364/OE.26.023945",

language = "English",

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journal = "Optics Express",

issn = "1094-4087",

publisher = "The Optical Society",

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TY - JOUR

T1 - Nonlinearity compensation using optical phase conjugation deployed in discretely amplified transmission systems

AU - Al-Khateeb, Mohammad

AU - McCarthy, Mary E.

AU - Sánchez, Christian

AU - Ellis, Andrew D.

N1 - Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funding: EPSRC EP/J017582/1 [UNLOC]; EP/L000091/1; H2020 659950 [INVENTION].

PY - 2018/8/31

Y1 - 2018/8/31

N2 - We introduce a closed form equation, validated by simulations and experimentalresults, that predicts the residual nonlinear noise ratio in mid-link OPC assisted discretely amplified systems. The model anticipates the reduction in performance enhancement achieved by mid-link OPC as the bandwidth of the modulated signals increases. The numerical analysis shows that uncompensated signal-signal interactions limit the performance improvement achieved by the introduction of additional OPCs. The numerical analysis predicts that the deployment of shorter amplifier spacing will lead to a greater performance enhancement. The numerical results are validated by experimentally testing of 2x, 4x, and 8x28Gbaud PM-QPSK systems with mid-link OPC compensation in a discretely amplified system with 100km amplifier spacing. The experimentally obtained reach enhancement (43%, 32%, and 24% for 2x28Gbaud, 4x28Gbaud, and 8x28Gbaud, respectively) confirms that the compensation efficiency of mid-link OPC is highly dependent on the number of channels (bandwidth) propagating along the system.

AB - We introduce a closed form equation, validated by simulations and experimentalresults, that predicts the residual nonlinear noise ratio in mid-link OPC assisted discretely amplified systems. The model anticipates the reduction in performance enhancement achieved by mid-link OPC as the bandwidth of the modulated signals increases. The numerical analysis shows that uncompensated signal-signal interactions limit the performance improvement achieved by the introduction of additional OPCs. The numerical analysis predicts that the deployment of shorter amplifier spacing will lead to a greater performance enhancement. The numerical results are validated by experimentally testing of 2x, 4x, and 8x28Gbaud PM-QPSK systems with mid-link OPC compensation in a discretely amplified system with 100km amplifier spacing. The experimentally obtained reach enhancement (43%, 32%, and 24% for 2x28Gbaud, 4x28Gbaud, and 8x28Gbaud, respectively) confirms that the compensation efficiency of mid-link OPC is highly dependent on the number of channels (bandwidth) propagating along the system.

KW - Optical communications

KW - Phase conjugation

KW - Nonlinear optics

KW - Fibers

UR - https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-18-23945

UR - https://doi.org/10.17036/researchdata.aston.ac.uk.00000350

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DO - 10.1364/OE.26.023945

M3 - Article

SN - 1094-4087

VL - 26

SP - 23945

EP - 23959

JO - Optics Express

JF - Optics Express

IS - 18

ER -

Nonlinearity compensation using optical phase conjugation deployed in discretely amplified transmission systems

Abstract

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Keywords

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