Global Patent Index - EP 1016235 A2

EP 1016235 A2 2000-07-05 - WAVELENGTH-SELECTIVE OPTICAL SWITCHING APPARATUS

Title (en)

WAVELENGTH-SELECTIVE OPTICAL SWITCHING APPARATUS

Title (de)

WELLENLÄNGENSELEKTIVE OPTISCHE VERMITTLUNGSEINRICHTUNG

Title (fr)

DISPOSITIF DE COMMUTATION OPTIQUE A LONGUEUR D'ONDE SELECTIONNEE, SYSTEME DE COMMUNICATION OPTIQUE METTANT CE DISPOSITIF EN APPLICATION ET PROCEDE UTILISE DANS CE SYSTEME DE COMMUNICATION OPTIQUE

Publication

EP 1016235 A2 (EN)

Application

EP 98948319 A

Priority

  • US 9819457 W
  • US 5921497 P

Abstract (en)

[origin: WO9914879A2] An optical switching apparatus is designed to implement a serial switching architecture for wavelength division multiplexed (WDM) optical communication systems. The design allows for add/drop switching of a selected wavelength channel without switching a non-selected wavelength channel, thereby avoiding potential data loss on the non-selected channel during the add/drop switching interval. Exemplary implementations utilize fiber-optics and free-optics based approaches. The serial architecture readily accommodates new wavelength plans and/or the addition of new wavelength channels.

IPC 1-7 (main, further and additional classification)

H04J 14/00

IPC 8 full level (invention and additional information)

G02B 26/00 (2006.01); G02B 6/293 (2006.01); G02B 6/34 (2006.01); H04B 10/02 (2006.01); H04B 10/213 (2006.01); H04J 14/02 (2006.01); H04Q 11/00 (2006.01)

CPC (invention and additional information)

H04Q 11/0001 (2013.01); G02B 6/2932 (2013.01); G02B 6/29362 (2013.01); G02B 6/29367 (2013.01); G02B 6/29395 (2013.01); H04J 14/0206 (2013.01); H04J 14/0212 (2013.01); H04J 14/0213 (2013.01); H04J 14/0219 (2013.01)

Citation (search report)

See references of WO 9914879A3

Designated contracting state (EPC)

DE FR GB IT SE

EPO simple patent family

WO 9914879 A2 19990325; WO 9914879 A3 19990910; AU 9491398 A 19990405; CA 2300886 A1 19990325; CN 1273755 A 20001115; EP 1016235 A2 20000705; JP 2001517018 A 20011002

INPADOC legal status


2004-11-17 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040511

2003-12-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20031029

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000418

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB IT SE