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High-resolution fibre-grating based strain sensor with interferometric wavelength-shift detection
Electronics Letters · 1992 · Vol. 28(3) · pp. 236–238
A.D. Kersey✉(Optica)Timothy A. Berkoff(United States Naval Research Laboratory)W. W. Morey(Hartford Financial Services (United States))
Abstract
A technique for the detection of dynamic strain induced wavelength shifts in fibre Bragg grating sensors is reported that is based on an unbalanced-interferometer wavelength discriminator, which is capable of subnanostrain resolution (0.6 ne/√(Hz) at 500 Hz) sensing.
Advanced Fiber Optic SensorsPhotonic and Optical DevicesAdvanced MEMS and NEMS TechnologiesInterferometryOpticsWavelengthFiber Bragg gratingDiscriminatorMaterials scienceResolution (logic)GratingDiffraction gratingOptoelectronics
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References
Homodyne demodulation scheme for fiber optic sensors using phase generated carrier
IEEE Journal of Quantum Electronics · 1982 · 502 citations
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