Location of buried optical service cables using a remote EM-wave to modulate the polarisation state of guided light via the Faraday effect
Russell, S.J., Lewis, A.B., Clarke, R.J., Fleury, B.R. and Dakin, J.P. (2003) Location of buried optical service cables using a remote EM-wave to modulate the polarisation state of guided light via the Faraday effect. In, Proceedings of the 16th International Conference on Optical Fiber Sensors (OFS16), Nara, Japan, 2003. 16th International Conference on Optical Fiber Sensors (OFS16) Washington DC, USA, Optical Society of America.
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Description/Abstract
This paper presents the first results and theoretical examination of a method to locate the position of buried optical cables. A traveling EM-wave (RF), generated from above ground, modulates the state of polarization of the light guided by the fiber to be located. The magnitude and phase of this modulation are detected at the end of the fiber route and the results relayed to the operator. By observing the amplitude of this modulation the lateral position of the buried service can be determined. We have demonstrated 18dB signal/noise ratio, at a buried depth of 15m, in wet clay soil, using a radiated RF power of 38W at 144MHz.
| Item Type: | Book Section |
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| Related URLs: | |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > Optoelectronics Research Centre |
| Item ID: | 41566 |
| Date Deposited: | 03 Oct 2006 |
| Last Modified: | 28 Jun 2012 10:37 |
| Contributors: | Russell, S.J. (Author) Lewis, A.B. (Author) Clarke, R.J. (Author) Fleury, B.R. (Author) Dakin, J.P. (Author) |
| Date: | 2003 |
| Status: | Published |
| Publisher: | Optical Society of America |
| URI: | http://eprints.soton.ac.uk/id/eprint/41566 |
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