Fiber optic displacement sensing monitored by an OTDR and referenced by Fresnel reflection and by fiber Bragg gratings | Zendy

Mendonça S. | Zendy; Frazão O. | Zendy; Baptista J. M. | Zendy; Santos J. L. | Zendy

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Fiber optic displacement sensing monitored by an OTDR and referenced by Fresnel reflection and by fiber Bragg gratings

Author(s) -

Mendonça S.,

Frazão O.,

Baptista J. M.,

Santos J. L.

Publication year - 2007

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.22261

Subject(s) - fiber bragg grating , optical time domain reflectometer , optics , phosfos , fiber optic sensor , materials science , displacement (psychology) , fresnel equations , optical fiber , reflection (computer programming) , polarization maintaining optical fiber , physics , refractive index , computer science , psychology , psychotherapist , programming language

This work presents a study of displacement sensing based on a fiber eight geometry shape monitored by an optical time domain reflectometer. The displacement sensor is referenced by Fresnel reflection or by a fiber Bragg grating structure located after the sensor. One of the advantages of the fiber Bragg grating as referencing device is its capability to be multiplexed by a number of displacement sensors in series along the optical fiber. This concept is also demonstrated using two Bragg gratings. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 768–770, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22261

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