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A novel method for location of buried optical cables where an incident EM-wave modulates the polarization of guided light using the Faraday effect

A novel method for location of buried optical cables where an incident EM-wave modulates the polarization of guided light using the Faraday effect
A novel method for location of buried optical cables where an incident EM-wave modulates the polarization of guided light using the Faraday effect
This paper presents results and detailed theoretical analysis of a novel method to locate the position of buried optical cables. A travelling EM wave (RF), generated from above ground, modulates the state of polarization of the light propagating in the single-mode fibre to be located. The magnitude and phase of this modulation are detected at the end of the fibre route and the results are relayed to the operator of the locator. By observing the amplitude of this modulation, the lateral position of the buried service can be determined. We have demonstrated an 18 dB signal-to-noise ratio, at a buried depth of 1.5 m, in wet clay soil, using a radiated RF power of 38 W at 144 MHz.
0957-0233
1651-1658
Russell, S.J.
926d527c-ff5d-4d35-99d9-9366bcd2bb10
Lewis, A.B.
07b928f0-931f-44ec-8788-18f09ed6ba36
Clarke, R.J.
13bafe73-355f-4549-a5e0-ab0006373597
Fleury, B.R.
77313f31-bd39-41c1-9e13-3e62ad8e1c0a
Dakin, J.P.
04891b9b-5fb5-4245-879e-9e7361adf904
Russell, S.J.
926d527c-ff5d-4d35-99d9-9366bcd2bb10
Lewis, A.B.
07b928f0-931f-44ec-8788-18f09ed6ba36
Clarke, R.J.
13bafe73-355f-4549-a5e0-ab0006373597
Fleury, B.R.
77313f31-bd39-41c1-9e13-3e62ad8e1c0a
Dakin, J.P.
04891b9b-5fb5-4245-879e-9e7361adf904

Russell, S.J., Lewis, A.B., Clarke, R.J., Fleury, B.R. and Dakin, J.P. (2004) A novel method for location of buried optical cables where an incident EM-wave modulates the polarization of guided light using the Faraday effect. Measurement Science and Technology, 15 (8), 1651-1658. (doi:10.1088/0957-0233/15/8/038).

Record type: Article

Abstract

This paper presents results and detailed theoretical analysis of a novel method to locate the position of buried optical cables. A travelling EM wave (RF), generated from above ground, modulates the state of polarization of the light propagating in the single-mode fibre to be located. The magnitude and phase of this modulation are detected at the end of the fibre route and the results are relayed to the operator of the locator. By observing the amplitude of this modulation, the lateral position of the buried service can be determined. We have demonstrated an 18 dB signal-to-noise ratio, at a buried depth of 1.5 m, in wet clay soil, using a radiated RF power of 38 W at 144 MHz.

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Published date: 2004

Identifiers

Local EPrints ID: 13914
URI: https://eprints.soton.ac.uk/id/eprint/13914
ISSN: 0957-0233
PURE UUID: dba2bcf4-22a6-4570-a0fc-e2c539a220b5

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Date deposited: 13 Jan 2005
Last modified: 12 Nov 2019 17:30

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Contributors

Author: S.J. Russell
Author: A.B. Lewis
Author: R.J. Clarke
Author: B.R. Fleury
Author: J.P. Dakin

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