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Fibre optique 2000 fois plus rapide


Est-il possible d’augmenter la vitesse du haut débit sans une augmentation excessive des coûts? Selon des chercheurs de l’Université de Bangor, oui. Ces scientifiques britanniques ont mis au point un nouveau système pour multiplier la capacité de transmission des réseaux existants en fibres optique, ce qui augmenterait sa vitesse de 2000 fois.

Grâce à la technique de ‘Optical Orthogonal Frequency Division Multiplexing’ (OOFDM) , l’équipe universitaire a atteint un taux de 20 gigabits de données par seconde. Et ils prévoient d’atteindre 40 Gb. Des chiffres astronomiques quand on sait que la moyenne de l’ADSL est de 10 Mo par seconde.

Selon la BBC, Roger Giddings, un membre de l’équipe de gestion du projet appelé Ocean, a déclaré : «jusqu’à présent, les recherches ont essayé de multiplier la vitesse de la fibre optique en travaillant sur l’augmentation du nombre physique de brins de fibres dans le câble, ou le nombre de lasers de codage et de décodage de données numériques, solutions plus coûteuses que notre solution. « «Ce qui est nouveau, c’est que le projet Océan est faisable sur les réseaux actuels », a ajouté Giddings.
Quelles sont les répercussions d’une connexion plus rapide?
Une connexion Internet «supersonique» peut avoir un impact à bien des égards dans une société. Seulement 1 gigabit par seconde permet une conférence vidéo haute définition de n’importe où, sans délais entre les questions et les réponses, ou, dans les hôpitaux, par exemple, pour envoyer des données lourdes telles que l’IRM.

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