Journal ArticleDOI
FMCW of optical source envelope modulation for passive multiplexing of frequency-based fibre-optic sensors
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TLDR
In this paper, an optical frequency-domain reflectometry technique is described as a method for multiplexing vibrating fiber-optic sensors, which is demonstrated with two vibrating elements resulting in an isolation of 38 dB.Abstract:
An optical frequency-domain reflectometry technique is described as a method for multiplexing vibrating fibre-optic sensors. The system has been demonstrated with two vibrating elements resulting in an isolation of 38 dBread more
Citations
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Journal ArticleDOI
Distributed optical-fibre sensing
TL;DR: Examples of the use of both linear and non-linear optics in pursuit of DOFS development are presented, together with details of a range of systems which have been investigated for particular applications.
Distributed and Multiplexed Fiber Optic Sensors
Alan D. Kersey,John P. Dakin +1 more
TL;DR: In this paper, the advantages of the use of distributed fiber-optic sensor (DFOS) systems can be recognized by combining fiber sensing and telemetry, which can be classified as either intrinsic distributed or quasi-distributed.
Proceedings ArticleDOI
MuLTIPLExED FIBER OPTIC SENSORS
TL;DR: A wide range of multiplexing techniques for fiber optic sensors have been proposed and demonstrated over the past 10 years as mentioned in this paper, and systems utilizing multiplexed sensors have undergone field trials which have successfully proven the technology.
Journal ArticleDOI
FMCW multiplexing of fiber Bragg grating sensors
TL;DR: In this article, the use of frequency-modulated continuous wave (FMCW) techniques for multiplexing fiber Bragg grating (FBG) sensors is described.
References
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Journal ArticleDOI
Frequency domain optical reflectometer.
TL;DR: The method shows promise for characterizing the reflective properties of optical fiber elements, such as tapers, microbends, and splices, and may be useful in fault location.
Journal ArticleDOI
Analysis of a frequency-modulated continuous-wave ranging system
A.J. Hymans,J. Lait +1 more
TL;DR: In this article, the exact beat note for a discrete target is calculated and its Fourier transform is obtained, and the effect of Doppler shift on the return is discussed.
Journal ArticleDOI
Using the optical frequency domain technique for the analysis of discrete and distributed reflections in an optical fiber.
TL;DR: This work has shown that the optical frequency domain technique is suitable for recognition of the positions and properties of discrete reflections along an optical fiber.