EP 1012646 A1 20000628 - METHOD AND APPARATUS FOR COMBINING ADD/DROP OPTICAL SIGNAL LINES FROM A PLURALITY OF BRANCHING UNITS
Title (en)
METHOD AND APPARATUS FOR COMBINING ADD/DROP OPTICAL SIGNAL LINES FROM A PLURALITY OF BRANCHING UNITS
Title (de)
VERFAHREN UND VORRICHTUNG ZUM VEREINIGEN VON OPTISCHEN EINFÜGE-/AUSBLENDSIGNALLEITUNGEN AUS EINER VIELZAHL VON VERZWEIGUNGSEINHEITEN
Title (fr)
PROCEDE ET APPAREIL POUR COMBINER DES LIGNES DE SIGNAUX OPTIQUES A INSERTION/EXTRACTION EN PROVENANCE DE PLUSIEURS UNITES DE DERIVATION
Publication
Application
Priority
- US 9715738 W 19971008
- US 72859196 A 19961010
Abstract (en)
[origin: WO9815861A1] An optical signal processing method and apparatus for combining the add/drop lines for multiple add/drop multiplexers (ADMs) (58, 60, 62) into a single pair of add/drop lines (54, 56), comprising a plurality of optical fiber trunks (42, 44, 46, 48, 50, 52) for carrying trunk traffic, a plurality of branching units (58, 60, 62), each attached to one of the fiber trunks, and each having an add and drop port, a fiber grating (472) in each branching unit for passing the branch traffic from the add port to the drop port of each of the branching units, and a single fiber pair connecting the branching units for carrying branch traffic between the branching units.
IPC 1-7
IPC 8 full level
G02B 6/293 (2006.01); H04B 10/27 (2013.01); G02B 6/34 (2006.01); H04B 10/29 (2013.01); H04B 10/291 (2013.01); H04J 14/00 (2006.01); H04J 14/02 (2006.01); H04Q 3/52 (2006.01)
CPC (source: EP)
G02B 6/2932 (2013.01); G02B 6/29383 (2013.01); H04J 14/0201 (2013.01); H04J 14/0206 (2013.01); H04J 14/0213 (2013.01); H04J 14/0217 (2013.01); H04J 14/0219 (2013.01)
Citation (search report)
See references of WO 9815861A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9815861 A1 19980416; AU 4799897 A 19980505; CA 2267779 A1 19980416; EP 1012646 A1 20000628; JP 2001505728 A 20010424; JP 4105233 B2 20080625; TW 357504 B 19990501
DOCDB simple family (application)
US 9715738 W 19971008; AU 4799897 A 19971008; CA 2267779 A 19971008; EP 97910697 A 19971008; JP 51750698 A 19971008; TW 86114865 A 19971216