High-resolution fibre-grating based strain sensor with interferometric wavelength-shift detection

A.D. Kersey, Timothy A. Berkoff, W. W. Morey

Electronics Letters · 1992 · 417 citations · 1 references

Concepts

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.

References

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