EP 1546793 A2 20050629 - DEVICE FOR TUNING A BRAGG GRATING BY MEANS OF COMPRESSION USING A PIEZOELECTRIC ACTUATOR
Title (en)
DEVICE FOR TUNING A BRAGG GRATING BY MEANS OF COMPRESSION USING A PIEZOELECTRIC ACTUATOR
Title (de)
VORRICHTUNG ZUR ABSTIMMUNG EINES BRAGG-GITTERS DURCH KOMPRESSION MITTELS EINES PIEZOAKTORS
Title (fr)
DISPOSITIF D'ACCORD D'UN RESEAU DE BRAGG PAR COMPRESSION AU MOYEN D'UN ACTIONNEUR PIEZOELECTRIQUE
Publication
Application
Priority
- FR 0350069 W 20030926
- FR 0212061 A 20020930
Abstract (en)
[origin: WO2004029696A2] The invention relates to a device for tuning a Bragg grating by means of compression using a piezoelectric actuator. The inventive device, which is intended, in particular, for optical telecommunications, comprises, for example: means (8) of compressing a segment (4) of optical fibre containing a Bragg grating (2); means (10) of preventing said segment from buckling; a tube (14), through which the aforementioned segment passes; and means (32, 34) of guiding the segment inside the tube. The compression means comprise a dished deformable element (8) and a piezoelectric actuator (20, 22) which is disposed between the deformable element and the tube. According to the invention, the piezoelectric actuator lengthens when excited and, in this way, causes the deformable element to bend, said element in turn compressing the segment.
IPC 1-7
IPC 8 full level
G02F 1/01 (2006.01); G02F 1/225 (2006.01)
CPC (source: EP US)
G02F 1/0134 (2013.01 - EP US); G02F 1/2252 (2013.01 - EP US)
Citation (search report)
See references of WO 2004029696A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004029696 A2 20040408; WO 2004029696 A3 20040513; CA 2500316 A1 20040408; EP 1546793 A2 20050629; FR 2845166 A1 20040402; FR 2845166 B1 20041029; JP 2006501496 A 20060112; US 7054525 B1 20060530
DOCDB simple family (application)
FR 0350069 W 20030926; CA 2500316 A 20030926; EP 03780281 A 20030926; FR 0212061 A 20020930; JP 2004539162 A 20030926; US 52920105 A 20050325