EP 2912412 A1 20150902 - A BRILLOUIN OPTOELECTRONIC MEASUREMENT METHOD
Title (en)
A BRILLOUIN OPTOELECTRONIC MEASUREMENT METHOD
Title (de)
VERFAHREN FÜR OPTOELEKTRONISCHE BRILLOUIN-MESSUNGEN
Title (fr)
PROCÉDÉ DE MESURE OPTOÉLECTRONIQUE DE BRILLOUIN
Publication
Application
Priority
EP 2012071389 W 20121029
Abstract (en)
[origin: WO2014067548A1] A Brillouin optoelectronic measurement method comprising the steps of, providing a pump signal in a first end of an optical fiber, and providing a probe signal in the opposite end of said optical fiber, so that both the pump and probe signals can interact in the optical fibre to generate simulated Brillouin backscattering, using the stimulated Brillouin backscatteringto perform a measurement, characterised in that the pump signal comprising at least a first and second monochromatic wave, such that thefirst monochromatic wave can generate a Brillouin gain spectrum and thesecond monochromatic wave can generate a first Brillouin loss spectrum, wherein the frequency of thefirst and second monochromatic waves are different, and wherein the frequencies of the first and second monochromatic waves are such that a frequency range of the first Brillouin loss spectrum generated by the second monochromatic wave only partly overlapsa frequency range of a Brillouin gain spectrum generated by the first monochromatic wave.
IPC 8 full level
G01D 5/353 (2006.01); G01M 11/00 (2006.01)
CPC (source: EP)
G01D 5/35364 (2013.01); G01M 11/39 (2013.01)
Citation (search report)
See references of WO 2014067548A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 2012071389 W 20121029; EP 12780485 A 20121029