Vermittlungssystem für optische Pakete

Système de commutateur pour paquets optiques

Switching system for optical packets


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.




Download Full PDF Version (Non-Commercial Use)

Patent Citations (5)

    Publication numberPublication dateAssigneeTitle
    EP-0503464-A2September 16, 1992Alcatel SEL AktiengesellschaftDispositif de commutation optique et module de commutation pour ce dispositif
    EP-0547836-A2June 23, 1993AT&T Corp.Optical packet switch
    FR-2672172-A1July 31, 1992Cit AlcatelMatrice de commutation photonique.
    JP-H0568048-AMarch 19, 1993Nippon Telegr & Teleph Corp , 日本電信電話株式会社光fifoメモリ
    US-5101455-AMarch 31, 1992The United States Of America As Represented By The Secretary Of The Air ForceRecirculating binary fiberoptic delay line apparatus for time steering

NO-Patent Citations (7)

    CISNEROS ET AL.: "A large ATM switch based on memory switches and optical star couplers", INTERNATIONAL CONFERENCE ON COMMUNICATIONS, vol. 2, 23 June 1991 (1991-06-23), DENVER US, pages 721 - 728, XP000269589
    HAAS: "Growability of the "Staggering Switch" architecture", IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS '93, vol. 1, 23 May 1993 (1993-05-23), GENÈVE CH, pages 578 - 583, XP000371156
    MASETTI ET AL.: "Optical fiber buffer for high-performance broadband switching", EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS AND RELATED TECHNOLOGIES, vol. 4, no. 6, MILANO IT, pages 671 - 679, XP000433724
    MURAKAMI ET AL.: "Overview of photonic switching systems using time-division and wavelength-division multiplexing", IEICE TRANSACTIONS ON COMMUNICATIONS, vol. E77-B, no. 2, TOKYO JP, pages 119 - 127, XP000447102
    PATENT ABSTRACTS OF JAPAN vol. 17, no. 386 (E - 1401) 20 July 1993 (1993-07-20)
    SHARONY ET AL.: "Extension of classical rearrangeable and non-blocking networks to the wavelength dimension", IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE/GLOBECOM '92, vol. 3, 6 December 1992 (1992-12-06), ORLANDO US, pages 1901 - 1905, XP000392891
    TSUKADA ET AL.: "Ultrafast photonic ATM switch based on time-division broadcast-and-select network", IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE/GLOBECOM '91, vol. 2, 2 December 1991 (1991-12-02), PHOENIX US, pages 1230 - 1234, XP000332854

Cited By (5)

    Publication numberPublication dateAssigneeTitle
    CN-100495098-CJune 03, 2009阿尔卡特公司可重新配置的光交换系统
    EP-0855587-A2July 29, 1998Sumitomo Electric Industries, Ltd.Variable Wellenlänge Lichtquelle und ODTR Apparat
    EP-0855587-A3July 21, 1999Sumitomo Electric Industries, Ltd.Variable Wellenlänge Lichtquelle und ODTR Apparat
    EP-1646262-A1April 12, 2006AlcatelDispositif de commutation optique reconfigurable
    FR-2875655-A1March 24, 2006Cit AlcatelDispositif de commutation optique reconfigurable