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Authors: Rafael Dias 1 ; João Rebola 1 ; 2 and Adolfo Cartaxo 1 ; 2

Affiliations: 1 Instituto Universitário de Lisboa (ISCTE-IUL), Lisboa, Portugal ; 2 Optical Communications and Photonics Group, Instituto de Telecomunicações, Lisboa, Portugal

ISBN: 978-989-758-492-3

ISSN: 2184-4364

Keyword(s): Bit Error Rate, Inter-Core Crosstalk, Inter-datacenter Connections, Multicore Fiber, Outage Probability, PAM4.

Abstract: In this work, we propose to use four-level pulse amplitude modulation (PAM4) and multicore fibers (MCFs) to support very high capacity inter-datacenter connections. The limitations imposed by inter-core crosstalk (ICXT) on the performance of 112 Gb/s up to 80 km-long optically amplified PAM4 inter-datacenter links with intensity-modulation and direct-detection (IM-DD) and full chromatic dispersion compensation in the optical domain are analyzed through numerical simulation. We show that those PAM4 inter-datacenter links achieve an outage probability (OP) of 10−4 with a maximum ICXT level of -13.9 dB for high skew-symbol rate products and require an ICXT level decrease of about 8.1 dB to achieve the same OP for low skew-symbol rate products. Due to using full dispersion compensation, the OP is not much affected by increasing the MCF length, from 10 km, where electrical noise significantly contributes to the performance degradation, to 80 km, where signal-amplified spontaneous emission beat noise is dominant. For an OP of 10−4, the maximum acceptable ICXT level shows only a 1.4 dB variation with the MCF length increase. (More)

CC BY-NC-ND 4.0

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Paper citation in several formats:
Dias, R.; Rebola, J. and Cartaxo, A. (2021). Performance Analysis of PAM4 Signal Transmission in Inter-datacenter Multicore Fiber Links Impaired by Inter-Core Crosstalk. In Proceedings of the 9th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS, ISBN 978-989-758-492-3; ISSN 2184-4364, pages 94-103. DOI: 10.5220/0010321000940103

@conference{photoptics21,
author={Rafael Dias. and João Rebola. and Adolfo Cartaxo.},
title={Performance Analysis of PAM4 Signal Transmission in Inter-datacenter Multicore Fiber Links Impaired by Inter-Core Crosstalk},
booktitle={Proceedings of the 9th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS,},
year={2021},
pages={94-103},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010321000940103},
isbn={978-989-758-492-3},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of the 9th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS,
TI - Performance Analysis of PAM4 Signal Transmission in Inter-datacenter Multicore Fiber Links Impaired by Inter-Core Crosstalk
SN - 978-989-758-492-3
IS - 2184-4364
AU - Dias, R.
AU - Rebola, J.
AU - Cartaxo, A.
PY - 2021
SP - 94
EP - 103
DO - 10.5220/0010321000940103

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