Combined time and wavelength multiplexing technique of optical fiber grating sensor arrays using commercial OTDR equipment

Combined time and wavelength multiplexing technique of optical fiber grating sensor arrays using commercial OTDR equipment

The use of a commercial optical time domain reflectometry device for simultaneous wavelength and time domain multiplexing of fiber-optic Bragg grating sensors is proposed and demonstrated. The realization of such systems provides an inexpensive way of interrogating several hundreds of sensors in a s...

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Veröffentlicht in:IEEE sensors journal 2003-02, Vol.3 (1), p.31-35
Hauptverfasser: Valente, L.C.G., Braga, A.M.B., Ribeiro, A.S., Regazzi, R.D., Ecke, W., Chojetzki, C., Willsch, R.
Format: Artikel
Sprache:eng
Schlagworte:
Diffraction gratings
Fiber gratings
Fiber optics
Multiplexing
Multiplexing equipment
Optical arrays
Optical devices
Optical fiber devices
Optical fiber sensors
Optical fibers
Optical sensors
Sensor arrays
Sensors
Strain
Strain measurement
Time domain
Wavelengths
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Beschreibung
Zusammenfassung:The use of a commercial optical time domain reflectometry device for simultaneous wavelength and time domain multiplexing of fiber-optic Bragg grating sensors is proposed and demonstrated. The realization of such systems provides an inexpensive way of interrogating several hundreds of sensors in a single fiber. Strain resolution of 30 /spl mu/m/m over a strain measuring range of 0.5% was obtained.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2003.810106