Vermittlungssystem für optische Pakete

Système de commutateur pour paquets optiques

Switching system for optical packets

Abstract

The switch includes a device which reads the header of each received optical packet and identifies (12) the corresponding routing. Each input packet is oriented and directed towards the routing determined by the packet header. Delay lines (14) selectively carry optical signals to provide control when two packets arrive simultaneously at the same output. A first timing stage (10) directs each received optical packet towards a chosen delay line to provide a chosen delay for organisation in time of the packets to avoid routing conflicts. A number of switching sections (12) and delay lines are included. A second stage (20) is coupled to the first stage and selectively directs the packets towards the appropriate routing. An output stage (30) includes a number of couplers or multiplexers and passes the packets to an output.
La présente invention concerne un commutateur de signaux optiques comprenant des moyens (12) d'identification du routage de chaque paquet optique, des moyens (12) aptes à diriger chaque paquet arrivant sur une entrée (E) quelconque vers la sortie (S) correspondant au routage, et des lignes à retard (14) par lesquelles transitent sélectivement les signaux optiques, caractérisé par le fait qu'il comprend trois étages : un premier étage (10), adapté pour diriger chaque paquet optique reçu en entrée (E) vers une ligne à retard choisie (14), un second étage (20), couplé en sortie des lignes à retard (14) et adapté pour diriger sélectivement les paquets optiques vers la sortie (S) correspondant au routage déterminé, et un troisième étage (30) de sortie.

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    FR-2875655-A1March 24, 2006Cit AlcatelDispositif de commutation optique reconfigurable