Fiber optic grating demodulation using a Fourier-transform spectrometer

Norman C. Anheier Jr.; Mary Bliss; Richard A. Craig

doi:10.1117/12.323419

23 September 1998 Fiber optic grating demodulation using a Fourier-transform spectrometer

Norman C. Anheier Jr., Mary Bliss, Richard A. Craig

Proceedings Volume 3489, Fourth Pacific Northwest Fiber Optic Sensor Workshop; (1998) https://doi.org/10.1117/12.323419
Event: Fourth Pacific Northwest Fiber Optic Sensor Workshop, 1998, Troutdale, OR, United States

Abstract

Pacific Northwest National Laboratory is developing a fiber optic grating sensor demodulator using a low cost static Fourier-transform interferometer. The spectrometer uses a fiber optic source and a plane mirror to form an interferogram in the spatial domain that is recorded by a linear photodiode array detector. Using this instrument with an interferogram fringe spacing of 20 microns provides fiber grating strain resolution of about 700-microstrain.

Citation Download Citation

Norman C. Anheier Jr., Mary Bliss, and Richard A. Craig "Fiber optic grating demodulation using a Fourier-transform spectrometer", Proc. SPIE 3489, Fourth Pacific Northwest Fiber Optic Sensor Workshop, (23 September 1998); https://doi.org/10.1117/12.323419

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