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COMPACT OPTICAL FIBRE CURRENT MONITOR WITH PASSIVE TEMPERATURE STABILISATION

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Abstract

A number of optical current monitors1f2 incorporating low-birefringence fibre have been described. However, when such fibres are tightly coiled or subject to external forces, birefringence is induced, which reduces the current sensitivity. These effects render the device sensitive to external perturbations such as vibration and restrict the number of turns of small diameter which can be employed and thus no compact, robust and sensitive current monitors have been developed.

© 1988 Optical Society of America

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