Multiplexing fiber Bragg grating sensors

William W. Morey; James R. Dunphy; Gerald Meltz

doi:10.1117/12.56520

1 January 1992 Multiplexing fiber Bragg grating sensors

William W. Morey, James R. Dunphy, Gerald Meltz

Proceedings Volume 1586, Distributed and Multiplexed Fiber Optic Sensors; (1992) https://doi.org/10.1117/12.56520
Event: OE Fiber, 1991, Boston, MA, United States

Abstract

Bragg reflection gratings and out-coupling taps for sensors can be written holographically within the core of many commercial fibers available today. The gratings appear to be permanent and have been tested to temperatures in excess of 500 degree(s)C. Quasi-distributed temperature, strain, pressure, chemical, and interferometric type sensors can be made with the wavelength selective, reflection gratings, and taps. The fiber gratings, and the different types of sensors they can make, conveniently lend themselves to WDM, TDM, and FDM types of multiplexing schemes. Instrumentation to detect the multiple sensors and measure their spectral shift for localized and quasi-distributed sensing is currently under development.

Citation Download Citation

William W. Morey, James R. Dunphy, and Gerald Meltz "Multiplexing fiber Bragg grating sensors", Proc. SPIE 1586, Distributed and Multiplexed Fiber Optic Sensors, (1 January 1992); https://doi.org/10.1117/12.56520

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