Experimental Assessment of Capacity Prediction from G-SNR measurements for Submarine Systems

Meseguer, Alexis Carbo; Antona, Jean‐Christophe; Esparza, Juan Uriel; Calsat, Alain; Plantady, Philippe; Quintana, Andrea R.; Letellier, Vincent

doi:10.1364/ofc.2022.w4g.3

Cited by 4 publications

(2 citation statements)

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“…2) Further elaborations on our previous work [14] where, for the first time, channel probing method is used in the systematic lab study to derive OSaaS service margins required to accommodate the impact from enabled direct neighbors and the end-of-life channel loads in the OLS, and 3) using margin depletion method in the HEAnet production network to explore the changes in GSNR implementation margin required for achievable capacity estimations [15,16] through decreasing or increasing the power levels near zero-margin, pre-Forward Error Correction (FEC) Bit Error Rate (BER) thresholds.…”

Section: Introductionmentioning

confidence: 99%

Employing channel probing to derive end-of-life service margins for optical spectrum services

Kaeval

Slyne

Troia

et al. 2023

J. Opt. Commun. Netw.

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Optical Spectrum as a Service (OSaaS) spanning over multiple transparent optical network domains, can significantly reduce the investment and operational costs of the end-to-end service. Based on the black-link approach, these services are empowered by reconfigurable transceivers and the emerging disaggregation trend in optical transport networks. This work investigates the accuracy aspects of the channel probing method used in Generalized Signal to Noise Ratio (GSNR)-based OSaaS characterization in terrestrial brownfield systems. OSaaS service margins to accommodate impacts from enabling neighboring channels and end-of-life channel loads are experimentally derived in a systematic lab study carried out in the Open Ireland testbed. The applicability of the lab-derived margins is then verified in the HEAnet production network using a 400 GHz wide OSaaS. Finally, the probing accuracy is tested by depleting the GSNR margin through power adjustments utilizing the same 400 GHz OSaaS in the HEAnet live network. A minimum of 0.92 dB and 1.46 dB of service margin allocation is recommended to accommodate the impacts of enabling neighboring channels and end-of-life channel loads. Further 0.6 dB of GSNR margin should be allocated to compensate for probing inaccuracies.

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Section: Introductionmentioning

confidence: 99%

Employing channel probing to derive end-of-life service margins for optical spectrum services

Kaeval

Slyne

Troia

et al. 2023

J. Opt. Commun. Netw.

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“…OSNR (optical signal-to-noise ratio) and GSNR (generalized signal-to-noise ratio) measurements have been chosen as metrics to describe open cables wet plant 5,6,7,8 . GSNR accounts for the total noise contributions accumulated during the optical transmission in the wet plant.…”

Section: Introductionmentioning

confidence: 99%

Accurate prediction of performance for a submarine open cable

Girard-Jollet

Antona²,

Meseguer³

et al. 2023

Next-Generation Optical Communication: Components, Sub-Systems, and Systems XII

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Submarine systems have recently evolved from turnkey systems into an open cable approach, where new metrics describing wet plant performance have been defined. The transmission GSNR has been standardized and is measured together with the OSNR in cable commissioning to characterize open submarine links. We propose in this paper a method based on numerical simulation to accurately predict the achievable capacity of open cables using only the commissioning parameters. We also assess the impact of the measurement uncertainties during commissioning on capacity prediction. Finally, we apply the proposed method to realistic subsea links and show how the uncertainty on the capacity estimate can be reduced further when using the commissioning measurements to reduce the uncertainty on line parameters.

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Effective Impact of Modulation on Interchannel Nonlinear Effects in Realistic Submarine Links with Commercial Transceivers

Girard-Jollet,

Antona,

Meseguer Alcatel

et al. 2023

2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM)

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Experimental Assessment of Capacity Prediction from G-SNR measurements for Submarine Systems

Abstract: We experimentally assessed that total net throughput of submarine cables can be predicted from G-SNR measurements with inaccuracy <3% when the system is operated close or below the nonlinear threshold using probabilistic constellation shaping modulation formats. © 2022 The Author(s)

Cited by 4 publications

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Employing channel probing to derive end-of-life service margins for optical spectrum services

Employing channel probing to derive end-of-life service margins for optical spectrum services

Accurate prediction of performance for a submarine open cable

Effective Impact of Modulation on Interchannel Nonlinear Effects in Realistic Submarine Links with Commercial Transceivers

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