A Novel Distributed Optical Fibre Sensing System Enabling Location Of Disturbances In A Sagnac Loop Interferometer.

J P Dakin; D A J Pearce; A P Strong; C A Wade

doi:10.1117/12.942527

23 March 1988 A Novel Distributed Optical Fibre Sensing System Enabling Location Of Disturbances In A Sagnac Loop Interferometer.

J P Dakin, D A J Pearce, A P Strong, C A Wade

Author Affiliations +

Proceedings Volume 0838, Fiber Optic and Laser Sensors V; (1988) https://doi.org/10.1117/12.942527
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

Abstract

The paper describes a novel, distributed fibre optic sensor capable of detecting and locating a disturbance on a continuous length of fibre. The sensor is based on a Sagnac loop interferometer. Any disturbance that causes a phase shift in the light propagating within the fibre loop, such as a change in the mechanical strain or temperature of the fibre, can be located. The basic principle of operation is described and preliminary results, obtained from a feasibility experiment, are given.

Citation Download Citation

J P Dakin, D A J Pearce, A P Strong, and C A Wade "A Novel Distributed Optical Fibre Sensing System Enabling Location Of Disturbances In A Sagnac Loop Interferometer.", Proc. SPIE 0838, Fiber Optic and Laser Sensors V, (23 March 1988); https://doi.org/10.1117/12.942527

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