Multiplexing of fiber Bragg grating sensors using an FMCW technique

P. K C Chan; Wei Jin; J. M. Gong; M. S. Demokan

doi:10.1109/68.803082

Multiplexing of fiber Bragg grating sensors using an FMCW technique

P. K C Chan, Wei Jin, J. M. Gong, M. S. Demokan

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

60 Citations (Scopus)

Abstract

We report on the use of a frequency-domain reflectometry technique for multiplexing fiber Bragg grating (FBG) sensors. This technique is based on the modulation of light intensity from a broadband source by a swept-frequency RF carrier. Signals from the FBG sensors located at different positions in an array are separated in the frequency-domain and demodulated using a tunable optical filter. A three FBG sensor system is experimentally demonstrated. The potential of the technique for multiplexing a large number of FBG sensors is discussed.

Original language	English
Pages (from-to)	1470-1472
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	11
Issue number	11
DOIs	https://doi.org/10.1109/68.803082
Publication status	Published - 1 Nov 1999

ASJC Scopus subject areas

Electrical and Electronic Engineering
Physics and Astronomy (miscellaneous)
Atomic and Molecular Physics, and Optics

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10.1109/68.803082

http://hdl.handle.net/10397/358

Cite this

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Multiplexing of fiber Bragg grating sensors using an FMCW technique

Abstract

ASJC Scopus subject areas

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