EP 1145446 A3 20020911 - OPTICAL DIFFERENTIATION DEVICE
Title (en)
OPTICAL DIFFERENTIATION DEVICE
Title (de)
OPTISCHER SIGNALTEILER
Title (fr)
DIFFERENCIATEUR OPTIQUE
Publication
Application
Priority
- FR 0002219 W 20000802
- FR 9910073 A 19990803
Abstract (en)
[origin: WO0110045A2] The invention concerns an optical device (1) for differentiating a first optical signal and an optical signal delayed relatively to the first, wherein the differentiation is represented by a signal carried by a continuous wave passing through the two arms (5, 6) of an inteferometer comprising media whereof the index is a function of the optical power traversing said media. The delayed signal is looped-back on one of the arms through a delay (7).
IPC 1-7
IPC 8 full level
G02B 6/00 (2006.01); G02F 1/01 (2006.01); G02F 1/225 (2006.01); G02F 3/00 (2006.01); H04B 10/00 (2006.01); H04B 10/17 (2006.01); H04B 10/291 (2013.01); H04B 10/299 (2013.01); G02F 1/21 (2006.01)
CPC (source: EP US)
G02F 1/225 (2013.01 - EP US); H04B 10/2914 (2013.01 - EP US); H04B 10/299 (2013.01 - EP US); G02F 1/212 (2021.01 - EP US); G02F 2203/26 (2013.01 - EP US)
Citation (search report)
See references of WO 0110045A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2797331 A1 20010209; FR 2797331 B1 20020719; CA 2345371 A1 20010208; EP 1145446 A2 20011017; EP 1145446 A3 20020911; JP 2003506726 A 20030218; US 2004062470 A1 20040401; US 6628855 B1 20030930; WO 0110045 A2 20010208; WO 0110045 A3 20010830
DOCDB simple family (application)
FR 9910073 A 19990803; CA 2345371 A 20000802; EP 00956595 A 20000802; FR 0002219 W 20000802; JP 2001513828 A 20000802; US 67198603 A 20030925; US 78789201 A 20010328