A Distributed Fibre Temperature Sensor Using The Optical Kerr Effect

J. P. Dakin; D. J. Pratt; C. Edge; M. J. Goodwin; I. Bennion

doi:10.1117/12.941099

14 October 1987 A Distributed Fibre Temperature Sensor Using The Optical Kerr Effect

J. P. Dakin, D. J. Pratt, C. Edge, M. J. Goodwin, I. Bennion

Proceedings Volume 0798, Fiber Optic Sensors II; (1987) https://doi.org/10.1117/12.941099
Event: Fourth International Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, The Hague, Netherlands

Abstract

The paper reports on the feasibility of measuring temperature distribution in optical fibres using the optical Kerr effect. The basis of the proposed method is to inject a pump pulse into one arm of an optical fibre interferometer to cause a transient phase imbalance as a result of the optical Kerr effect. As the optical pulse and the interferometer interogating beams propagate in opposite directions, the magnitude of the optical Kerr effect as a function of distance along the fibre can be determined from the temporal variation of the detected signal. The results show that the temperature dependence of the optical Kerr effect appears to be substantially less than that reported for the electrical Kerr coefficients measured at low frequencies.

Citation Download Citation

J. P. Dakin, D. J. Pratt, C. Edge, M. J. Goodwin, and I. Bennion "A Distributed Fibre Temperature Sensor Using The Optical Kerr Effect", Proc. SPIE 0798, Fiber Optic Sensors II, (14 October 1987); https://doi.org/10.1117/12.941099

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