Use of Spun optical fibres in current sensors

Journal Article · Fri Mar 31 00:00:00 EST 2006 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2006V036N03ABEH013136· OSTI ID:21456859

Gubin, Vladimir P; Isaev, Victor A; Morshnev, Sergey K; Sazonov, Aleksandr I; Starostin, Nikolay I; Chamorovsky, Yury K; Oussov, Aleksey I ^[1]

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1. Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Fryazino, Moscow Region (Russian Federation)

The polarisation properties of a Spun optical fibre are studied in connection with their applications in fibreoptic current sensors based on the Faraday effect. A model of this fibre is proposed which represents it as an anisotropic medium with the spiral structure of the fast and slow birefringence axes. A sensor is developed based on an all-fibre low-coherence linear interferometer with a threshold sensitivity of 70 mA Hz{sup -1/2}, a maximum measured current of 3000 A, and a scale-factor reproducibility of {+-}0.6%. It is found that for a given diameter of the fibre contour, the normalised sensitivity is independent of the fibre length. The experimental results confirm the theory. (laser applications and other topics in quantum electronics)

• OSTI ID: 21456859
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 36, Issue 3; Other Information: DOI: 10.1070/QE2006v036n03ABEH013136; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
BIREFRINGENCE
FARADAY EFFECT
INTERFEROMETERS
LENGTH
OPTICAL FIBERS
POLARIZATION
SENSITIVITY
SENSORS
DIMENSIONS
FIBERS
MEASURING INSTRUMENTS
REFRACTION