Fibre-optic Fabry-Perot sensor

A fibre-optic Fabry-Perot sensor has an optical-fibre segment (6) which forms the optical resonator of an interferometer (4), is mirrored on its two end faces (7, 8), and instead of a monomode fibre consists of a graded-index fibre. The graded-index fibre is preferably bent in the shape of a U. The...

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Bibliographische Detailangaben
Hauptverfasser:	KIST,RAINER,ER.NAT, RAMAKRISHNAN,SESHADRI,ER.NAT
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	A fibre-optic Fabry-Perot sensor has an optical-fibre segment (6) which forms the optical resonator of an interferometer (4), is mirrored on its two end faces (7, 8), and instead of a monomode fibre consists of a graded-index fibre. The graded-index fibre is preferably bent in the shape of a U. The transmitted light is detected with the aid of a light detector (11) which is connected to an evaluation circuit (14, 15, 16, 17).