OPTICAL FIBER SENSOR

An optical fiber sensor includes a central core that is formed at a center of an optical fiber; and at least one outer peripheral core that is formed so as to spirally surround the central core, and the ratio between the effective refractive index of the central core and the effective refractive ind...

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Bibliographische Detailangaben
Hauptverfasser:	OHMORI Kenichi, ICHII Kentaro, OMICHI Koji, MATSUSHITA Shingo
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING 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:	An optical fiber sensor includes a central core that is formed at a center of an optical fiber; and at least one outer peripheral core that is formed so as to spirally surround the central core, and the ratio between the effective refractive index of the central core and the effective refractive index of the outer peripheral core is set such that the optical path length difference between the central core and the outer peripheral core is smaller than the optical path length difference in a case where the effective refractive indices of the central core and the outer peripheral core are the same.