Submarine networks: evolution, not revolution

Olivier Gautheron

doi:10.1016/j.crhy.2008.10.011

Submarine networks: evolution, not revolution
[Réseaux sous-marins : évolution sans révolution]

Olivier Gautheron ¹

¹ Alcatel-Lucent, Submarine Networks Division, 91625 Nozay, France

Comptes Rendus. Physique, Volume 9 (2008) no. 9-10, pp. 1031-1044.

Résumé
Abstract

Nous avions montré dans le numéro de janvier–février 2003 des Comptes Rendus de Physique comment le multiplexage en longueur d'onde avait permis d'accroitre sensiblement la capacité de transmission par fibre à-travers l'océan Atlantique (de $1 \times 5 Gbit / s$ en 1995 à $42 \times 10 Gbit / s$ en 2001). Depuis, l'éclatement de la bulle internet a ralenti l'accroissement de capacité mais récemment le besoin de grandes liaisons à-travers l'océan Pacifique a permis l'industrialisation de nouvelles technologies telle que la transmission à modulation de phase différentielle. Ce format de modulation permet également d'augmenter la capacité des fibres déjà déployées au-delà de leurs capacités maximales initiales. Nous discuterons également rapidement la possibilité de transmettre des canaux modulés à 40 Gb/s sur des liens sous-marins.

We have described in a previous issue of the Comptes Rendus Physique of January–February 2003 how the wavelength division multiplexing technique enabled us to increase drastically the transmission capacity per fiber over trans-Atlantic distances (from $1 \times 5 Gbit / s$ in 1995 up to $42 \times 10 Gbit / s$ in 2001). Then, the crash of the internet bubble reduced the need for higher capacity, but, recently, the demand in trans-Pacific links has lead to the deployment of new technologies such as the differential phase shift keying modulation format. This new modulation format also enables the upgrading of existing links beyond their design capacities. We illustrate the benefit of this new modulation format and also discuss the capabilities to increase the bit rate from 10 Gb/s to 40 Gb/s per wavelength.

Publié le : 2008-11-01

DOI : 10.1016/j.crhy.2008.10.011

Keywords: Wavelength division multiplexing, High bit rate modulation, Dispersion-slope-matched fiber, Erbium doped fiber amplifier, Chromatic dispersion, Differential phase shift keying, Forward error correction codes
Mot clés : Multiplexage en longueur d'onde, Modulation haut débit, Fibre à pente de dispersion compensée, Amplificateur optique à fibre dopé à l'erbium, Dispersion chromatique, Modulation de phase différentielle, Codes correcteur d'erreur

Affiliations des auteurs :

Olivier Gautheron ¹

¹ Alcatel-Lucent, Submarine Networks Division, 91625 Nozay, France

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     title = {Submarine networks: evolution, not revolution},
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     pages = {1031--1044},
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Olivier Gautheron. Submarine networks: evolution, not revolution. Comptes Rendus. Physique, Volume 9 (2008) no. 9-10, pp. 1031-1044. doi : 10.1016/j.crhy.2008.10.011. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2008.10.011/

Bibliographie
Cité par

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[11] G. Charlet, et al., Alternate-polarisation RZ-DPSK transmission at $40 \times 42.7 Gbit / s$ over transpacific distance with large Q-factor margin, in: European Conference on Optical Communications, ECOC'04, post-dead-line paper

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