Fiber Bragg grating array sensor system using a bandpass wavelength division multiplexer and interferometric detection
Open Access
- 1 November 1996
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 8 (11), 1522-1524
- https://doi.org/10.1109/68.541570
Abstract
A multiplexing approach for high-resolution sensing with Bragg gatings is described. The scheme uses a band-pass wavelength division multiplexer to separate the returned wavelengths from an array of gratings, and interferometric processing to attain high-strain resolution. A strain resolution of 1.5 nanostrain//spl radic/Hz is demonstrated, with a sensor bandwidth of 10 Hz-2 kHz for four sensors.Keywords
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