Interferometric Measurements Of Quasi-Static Measurands Using A Sinusoidal Modulation Of The Source Frequency

D. J. Webb; R. P. Tatam; J. D. C. Jones; D. A. Jackson

doi:10.1117/12.960996

29 October 1989 Interferometric Measurements Of Quasi-Static Measurands Using A Sinusoidal Modulation Of The Source Frequency

D. J. Webb, R. P. Tatam, J. D. C. Jones, D. A. Jackson

Author Affiliations +

Proceedings Volume 1120, Fibre Optics '89; (1989) https://doi.org/10.1117/12.960996
Event: Sira/Fibre Optics '89, 1989, London, United Kingdom

Abstract

We describe a technique for uniquely recovering the optical path imbalance within an interferometer interferometrically by means of a sinusoidal modulation of the source frequency. The technique is demonstrated in systems configured to measure displacement, intermodal dispersion in a highly birefringent fibre and the refractive index of a number of liquids.

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D. J. Webb, R. P. Tatam, J. D. C. Jones, and D. A. Jackson "Interferometric Measurements Of Quasi-Static Measurands Using A Sinusoidal Modulation Of The Source Frequency", Proc. SPIE 1120, Fibre Optics '89, (29 October 1989); https://doi.org/10.1117/12.960996

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