Global Patent Index - EP 1004045 A1

EP 1004045 A1 2000-05-31 - OPTICAL WAVELENGTH DIVISION MULTIPLEXER

Title (en)

OPTICAL WAVELENGTH DIVISION MULTIPLEXER

Title (de)

OPTISCHER WELLENLÄNGENMULTIPLEXER

Title (fr)

MULTIPLEXEUR OPTIQUE EN LONGUEUR D'ONDE

Publication

EP 1004045 A1 (EN)

Application

EP 98936525 A

Priority

  • GB 9802254 W
  • GB 9717079 A
  • GB 9815400 A

Abstract (en)

[origin: WO9908143A1] An optical wavelength division demultiplexing apparatus for demultiplexing a multiplexed optical signal having a plurality of channels occupying respective wavelength bands. The apparatus comprising at least one waveband selector (10, 11) that acts to select wavelength bands corresponding to non-adjacent channels, the selected wavelength bands being routed to an associated array demultiplexer (30, 31) that outputs the selected wavelength bands as a parallel array of channels.

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

G02B 6/293; G02B 6/12; G02B 6/34

IPC 8 full level (invention and additional information)

G02B 6/12 (2006.01); G02B 6/293 (2006.01); G02B 6/34 (2006.01); H04J 14/02 (2006.01)

CPC (invention and additional information)

G02B 6/2932 (2013.01); G02B 6/12007 (2013.01); G02B 6/2938 (2013.01); H04J 14/0213 (2013.01); H04J 14/0219 (2013.01); G02B 2006/12107 (2013.01); G02B 2006/12109 (2013.01); G02B 2006/12164 (2013.01); H04J 14/0208 (2013.01); H04J 14/0209 (2013.01)

Citation (search report)

See references of WO 9908143A1

Designated contracting state (EPC)

DE DK ES FR GB IT NL SE

EPO simple patent family

WO 9908143 A1 19990218; AU 8549598 A 19990301; CA 2299359 A1 19990218; EP 1004045 A1 20000531; GB 9815400 D0 19980916; JP 2001512848 A 20010828

INPADOC legal status


2003-01-02 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020624

2000-12-20 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20001107

2000-05-31 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000307

2000-05-31 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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