EP 1002383 A1 20000524 - MULTI-WAVELENGTH CROSS-CONNECT OPTICAL NETWORK
Title (en)
MULTI-WAVELENGTH CROSS-CONNECT OPTICAL NETWORK
Title (de)
MULTIWELLENLÄNGEN OPTISCHES QUERVERBINDUNGSNETZWERK
Title (fr)
RESEAU OPTIQUE A SOUS-REPARTITION A LONGUEURS D'ONDES MULTIPLES
Publication
Application
Priority
- US 9815618 W 19980728
- US 90755197 A 19970808
Abstract (en)
[origin: WO9908403A1] An optical cross-connect network provides wavelength routing of optical channels between two arrays of optical fibers carrying WDM signals using interconnected arrays of optical wavelength switches based on combinations of a 1 x 2 wavelength switch architecture. The cross-connect network can be made by interconnecting two arrays of 1 x 4 wavelength switches (10, 20), each of which is made by combining three 1 x 2 wavelength switches (11, 12, 13). Each 1 x 2 optical wavelength switch includes a polarization separation element (3) that decomposes and spatially separates the input signal into two orthogonally-polarized beams, and a wavelength filter (61) that decomposes into the beam pair into two pairs of orthogonally-polarized beams that carry a first spectral band at a first polarization and a second spectral band at an orthogonal polarization. A polarization-dependent routing element (50) spatially separates these four beams into four orthogonally-polarized components. A polarization combining element (70) recombines the beams carrying the first spectral band, and also recombines the beams carrying the second spectral band at the output ports based on the control state of the wavelength switch.
IPC 1-7
IPC 8 full level
G02B 6/34 (2006.01); G02F 1/31 (2006.01); H04B 10/02 (2006.01); H04B 10/27 (2013.01); H04B 10/29 (2013.01); H04Q 3/52 (2006.01); H04Q 11/00 (2006.01); H04Q 11/04 (2006.01)
CPC (source: EP)
G02B 6/272 (2013.01); G02B 6/29302 (2013.01); G02B 6/29395 (2013.01); H04Q 11/0005 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK FI FR GB IE IT LI NL SE
DOCDB simple family (publication)
WO 9908403 A1 19990218; AU 8666898 A 19990301; CA 2299402 A1 19990218; CN 1274494 A 20001122; EP 1002383 A1 20000524; EP 1002383 A4 20020814; JP 2004500722 A 20040108
DOCDB simple family (application)
US 9815618 W 19980728; AU 8666898 A 19980728; CA 2299402 A 19980728; CN 98809997 A 19980728; EP 98938062 A 19980728; JP 2000506740 A 19980728