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Faseroptischer Fabry-Perot-Sensor
A fibre-optic Fabry-Perot sensor has a waveguide section (6) forming the optical resonator of an interferometer (4), said section being reflecting at its two end faces (7, 8) and comprising a graded index fibre instead of a monomode fibre. The graded index fibre is preferably bent into a U shape.openaire