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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 19 — Sep. 13, 2010
  • pp: 19951–19956

An interferometric current sensor based on optical fiber micro wires

Mohammad Belal, Zhang-qi Song, Yongming Jung, Gilberto Brambilla, and Trevor Newson  »View Author Affiliations


Optics Express, Vol. 18, Issue 19, pp. 19951-19956 (2010)
http://dx.doi.org/10.1364/OE.18.019951


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Abstract

In this paper we demonstrate a compact current sensor using the optic fiber micro wire, based on the idea of interferometrically measuring the thermally induced optical phase shifts as a result of heat produced due to the flow of electric current over short transit lengths. A responsivity of 1.28 x 10-4 rad/I2 at 50Hz of current signal has been shown, with capability of measuring alternating current signals up to 500Hz.

© 2010 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Sensors

History
Original Manuscript: June 24, 2010
Revised Manuscript: August 30, 2010
Manuscript Accepted: August 30, 2010
Published: September 3, 2010

Citation
Mohammad Belal, Zhang-qi Song, Yongming Jung, Gilberto Brambilla, and Trevor Newson, "An interferometric current sensor based on optical fiber micro wires," Opt. Express 18, 19951-19956 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-19-19951


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