EP 2198248 A2 20100623 - TRANSDUCER WITH MULTIMODAL OPTICAL FIBRE AND MODE COUPLING AND METHOD FOR MAKING SAME
Title (en)
TRANSDUCER WITH MULTIMODAL OPTICAL FIBRE AND MODE COUPLING AND METHOD FOR MAKING SAME
Title (de)
WANDLER MIT MULTIMODALER OPTISCHER FASER UND MODENKOPPLUNG SOWIE HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
TRANSDUCTEUR A FIBRE OPTIQUE MULTIMODE ET A COUPLAGE DE MODES, PROCEDE DE REALISATION
Publication
Application
Priority
- FR 2008051723 W 20080926
- FR 0757883 A 20070926
Abstract (en)
[origin: WO2009050385A2] The invention relates to an optical fibre transducer that is sensitive to at least one parameter of an environment in which it is located, the modification of the parameter(s) resulting in a modification of at least one measurable characteristic of a light wave injected into the optical fibre and flowing through the transducer, the optical fibre being multimodal and including a means adapted so that the modification of the light wave characteristic is based on a modification of mode coupling resulting from the modification of the environment parameter, said means leading to a mode coupling modification that generates, during the modification, a deformation of the optical fibre in the transducer according to a predetermined pattern. According to the invention, the means leading to the mode coupling modification is a hollow tube containing a relief pattern and surrounding the optical fibre at the transducer in a right section of the fibre.
IPC 8 full level
G01D 5/353 (2006.01)
CPC (source: EP US)
G01B 11/18 (2013.01 - EP US); G01D 5/35377 (2013.01 - EP US); G01L 1/242 (2013.01 - EP US); G02B 6/02071 (2013.01 - EP)
Citation (search report)
See references of WO 2009050385A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
FR 2921482 A1 20090327; FR 2921482 B1 20091113; EP 2198248 A2 20100623; US 2010303404 A1 20101202; WO 2009050385 A2 20090423; WO 2009050385 A3 20090820
DOCDB simple family (application)
FR 0757883 A 20070926; EP 08840514 A 20080926; FR 2008051723 W 20080926; US 68030308 A 20080926