Ultrasonic field and temperature sensor based on short in-fibre Bragg gratings

Fisher, N.E., Webb, David J., Pannell, C.N., Jackson, David A., Gavrilov, L.R., Hand, J.W., Zhang, Lin and Bennion, Ian (1998). Ultrasonic field and temperature sensor based on short in-fibre Bragg gratings. Electronics letters, 34 (11), pp. 1139-1140.

Abstract

The authors demonstrate that in-fibre Bragg gratings may be successfully used to measure megahertz acoustic fields if the grating length is sufficiently short and the optical fibre is appropriately desensitised. A noise-limited pressure resolution of 4.5 × 10 –3 atm vHz was found. The capability to simultaneously act as a temperature sensor is also demonstrated.

Uncontrolled Keywords: in-fibre Bragg gratings, measure megahertz acoustic fields, grating length, optical fibre, desensitisation, temperature sensor
Published Date: 1998-05-28
Authors: Fisher, N.E.
Webb, David J.
Pannell, C.N.
Jackson, David A.
Gavrilov, L.R.
Hand, J.W.
Zhang, Lin
Bennion, Ian

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