EP 1256193 A1 20021113 - USE OF PHASE SHIFT KEYED COHERENT OPTICAL SIGNALING IN A WAVELENGTH DIVISION MULTIPLEXED OPTICAL FIBER LINKS
Title (en)
USE OF PHASE SHIFT KEYED COHERENT OPTICAL SIGNALING IN A WAVELENGTH DIVISION MULTIPLEXED OPTICAL FIBER LINKS
Title (de)
VERWENDUNG VON PHASENSPRUNGMODULIERTER KOHÄRENTER OPTISCHER SIGNALISIERUNG IN OPTISCHEN GLASFASERVERBINDUNGEN MIT WELLENLÄNGENMULTIPLEX
Title (fr)
UTILISATION DE SIGNALISATION OPTIQUE COHERENTE PAR DECALAGE DE PHASE DANS DES LIAISONS DE FIBRES OPTIQUES MULTIPLEXEES EN LONGUEUR D'ONDES
Publication
Application
Priority
- US 0100851 W 20010111
- US 49127400 A 20000126
Abstract (en)
[origin: WO0156196A1] A wavelength division multiplexed (23) fiber optic link (40) including a phase shift keyed coherent transmitter (20) and receiver (30) coupled together by a way of periodic optically amplified (42, 44) fiber link. The transmitter has a plurality of phase shift keyed modulators (22) that each receive data for transmission over the fiber link. A separate laser (21) is coupled to each of the modulators (22) whose respective output beams are modulated with the data for transmission. Outputs of the modulators are input to a wavelength division multiplexer (23) that multiplexes the phase shift keyed modulated outputs of the phase shift keyed modulators for transmission over the fiber link. The receiver (30) includes an optical power splitter (31) or wavelength division multiplexed demultiplexer (32) that produces a plurality of data channels. A coherent optical demodulator (33) demodulates the plurality of data channels to produce data for each data channel. A corresponding optical signaling method is also disclosed.
IPC 1-7
IPC 8 full level
H04B 10/2513 (2013.01); H04B 10/2563 (2013.01); H04B 10/61 (2013.01)
CPC (source: EP)
H04B 10/2513 (2013.01); H04B 10/2563 (2013.01); H04B 10/612 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0156196 A1 20010802; AU 2934801 A 20010807; EP 1256193 A1 20021113; EP 1256193 A4 20060816
DOCDB simple family (application)
US 0100851 W 20010111; AU 2934801 A 20010111; EP 01946995 A 20010111