CD Estimation in FMFs Using the Auto-Correlation of the Signal Power Waveform

Henrique F. Santana, Lailson F. dos Santos, Filipe Ferreira, Darli A.A. Mello

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The exhaustion of the capacity of conventional optical systems based on standard single-mode fibers (SSMF) requires new solutions cope with the exponential traffic increase. In this scenario, transmission by few-mode fibers (FMFs) appears as a strong candidate. These systems require adaptive digital signal processing (DSP) algorithms with multiple inputs and multiple outputs (MIMO) at the receiver in order to recover the signals multiplexed in the various spatial and polarization modes. However, proper functioning of these equalizers requires the pre-compensation of chromatic dispersion (CD) in the receiver using static filters. Since the DSP algorithms in mode-multiplexed systems have a slow convergence, the typical scanning algorithms become difficult to apply. In this work, we investigate the applicability of an algorithm based on the auto-correlation of the signal power waveform to estimate the CD in FMF systems. The results indicate an algorithm vulnerability with the increase of the inter-mode crosstalk level.
Original languageEnglish
Title of host publication2018 SBFoton International Optics and Photonics Conference, SBFoton IOPC 2018
PublisherIEEE
ISBN (Electronic)978-1-5386-6702-6
ISBN (Print)978-1-5386-6703-3
DOIs
Publication statusPublished - 14 Jan 2019
Event2018 SBFoton International Optics and Photonics Conference (SBFoton IOPC) - Campinas, Brazil
Duration: 8 Oct 201810 Oct 2018

Conference

Conference2018 SBFoton International Optics and Photonics Conference (SBFoton IOPC)
CountryBrazil
CityCampinas
Period8/10/1810/10/18

Fingerprint

Chromatic dispersion
Autocorrelation
autocorrelation
waveforms
fibers
Fibers
Digital signal processing
signal processing
receivers
Adaptive systems
exhaustion
Equalizers
Single mode fibers
Crosstalk
vulnerability
Optical systems
crosstalk
traffic
Polarization
Scanning

Keywords

  • Chromatic dispersion estimation
  • coherent optical communications
  • mode multiplexing

Cite this

Santana, H. F., dos Santos, L. F., Ferreira, F., & Mello, D. A. A. (2019). CD Estimation in FMFs Using the Auto-Correlation of the Signal Power Waveform. In 2018 SBFoton International Optics and Photonics Conference, SBFoton IOPC 2018 [8610895] IEEE. https://doi.org/10.1109/SBFoton-IOPC.2018.8610895
Santana, Henrique F. ; dos Santos, Lailson F. ; Ferreira, Filipe ; Mello, Darli A.A. / CD Estimation in FMFs Using the Auto-Correlation of the Signal Power Waveform. 2018 SBFoton International Optics and Photonics Conference, SBFoton IOPC 2018. IEEE, 2019.
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title = "CD Estimation in FMFs Using the Auto-Correlation of the Signal Power Waveform",
abstract = "The exhaustion of the capacity of conventional optical systems based on standard single-mode fibers (SSMF) requires new solutions cope with the exponential traffic increase. In this scenario, transmission by few-mode fibers (FMFs) appears as a strong candidate. These systems require adaptive digital signal processing (DSP) algorithms with multiple inputs and multiple outputs (MIMO) at the receiver in order to recover the signals multiplexed in the various spatial and polarization modes. However, proper functioning of these equalizers requires the pre-compensation of chromatic dispersion (CD) in the receiver using static filters. Since the DSP algorithms in mode-multiplexed systems have a slow convergence, the typical scanning algorithms become difficult to apply. In this work, we investigate the applicability of an algorithm based on the auto-correlation of the signal power waveform to estimate the CD in FMF systems. The results indicate an algorithm vulnerability with the increase of the inter-mode crosstalk level.",
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Santana, HF, dos Santos, LF, Ferreira, F & Mello, DAA 2019, CD Estimation in FMFs Using the Auto-Correlation of the Signal Power Waveform. in 2018 SBFoton International Optics and Photonics Conference, SBFoton IOPC 2018., 8610895, IEEE, 2018 SBFoton International Optics and Photonics Conference (SBFoton IOPC), Campinas, Brazil, 8/10/18. https://doi.org/10.1109/SBFoton-IOPC.2018.8610895

CD Estimation in FMFs Using the Auto-Correlation of the Signal Power Waveform. / Santana, Henrique F. ; dos Santos, Lailson F. ; Ferreira, Filipe; Mello, Darli A.A.

2018 SBFoton International Optics and Photonics Conference, SBFoton IOPC 2018. IEEE, 2019. 8610895.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Santana, Henrique F.

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AU - Mello, Darli A.A.

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N2 - The exhaustion of the capacity of conventional optical systems based on standard single-mode fibers (SSMF) requires new solutions cope with the exponential traffic increase. In this scenario, transmission by few-mode fibers (FMFs) appears as a strong candidate. These systems require adaptive digital signal processing (DSP) algorithms with multiple inputs and multiple outputs (MIMO) at the receiver in order to recover the signals multiplexed in the various spatial and polarization modes. However, proper functioning of these equalizers requires the pre-compensation of chromatic dispersion (CD) in the receiver using static filters. Since the DSP algorithms in mode-multiplexed systems have a slow convergence, the typical scanning algorithms become difficult to apply. In this work, we investigate the applicability of an algorithm based on the auto-correlation of the signal power waveform to estimate the CD in FMF systems. The results indicate an algorithm vulnerability with the increase of the inter-mode crosstalk level.

AB - The exhaustion of the capacity of conventional optical systems based on standard single-mode fibers (SSMF) requires new solutions cope with the exponential traffic increase. In this scenario, transmission by few-mode fibers (FMFs) appears as a strong candidate. These systems require adaptive digital signal processing (DSP) algorithms with multiple inputs and multiple outputs (MIMO) at the receiver in order to recover the signals multiplexed in the various spatial and polarization modes. However, proper functioning of these equalizers requires the pre-compensation of chromatic dispersion (CD) in the receiver using static filters. Since the DSP algorithms in mode-multiplexed systems have a slow convergence, the typical scanning algorithms become difficult to apply. In this work, we investigate the applicability of an algorithm based on the auto-correlation of the signal power waveform to estimate the CD in FMF systems. The results indicate an algorithm vulnerability with the increase of the inter-mode crosstalk level.

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KW - coherent optical communications

KW - mode multiplexing

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Santana HF, dos Santos LF, Ferreira F, Mello DAA. CD Estimation in FMFs Using the Auto-Correlation of the Signal Power Waveform. In 2018 SBFoton International Optics and Photonics Conference, SBFoton IOPC 2018. IEEE. 2019. 8610895 https://doi.org/10.1109/SBFoton-IOPC.2018.8610895