Global Patent Index - EP 1256193 A1

EP 1256193 A1 2002-11-13 - 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

EP 1256193 A1 (EN)

Application

EP 01946995 A

Priority

  • US 0100851 W
  • US 49127400 A

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 (main, further and additional classification)

H04B 10/02; H04B 10/04; H04B 10/16

IPC 8 full level (invention and additional information)

H04B 10/2513 (2013.01); H04B 10/2563 (2013.01); H04B 10/61 (2013.01)

CPC (invention and additional information)

H04B 10/2563 (2013.01); H04B 10/2513 (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

EPO simple patent family

WO 0156196 A1 20010802; AU 2934801 A 20010807; EP 1256193 A1 20021113; EP 1256193 A4 20060816

INPADOC legal status


2007-06-06 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20030514

2006-08-16 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20060713

2006-08-16 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: H04B 10/142 20060101AFI20060707BHEP

2006-08-16 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: H04B 10/18 20060101ALI20060707BHEP

2002-11-13 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020809

2002-11-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-11-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI