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Distributed temperature sensor using holmium doped optical fibre

Distributed temperature sensor using holmium doped optical fibre
Distributed temperature sensor using holmium doped optical fibre
Preliminary results of an optical-fiber distributed temperature sensor using neodymium as the active fiber dopant have been reported. An investigation has been made of fibers doped with the rare earths neodymium, erbium, praseodymium, and holmium which were fabricated using the method previously reported. Silica fiber doped with holmium has an order of magnitude greater temperature sensitivity than the other rare earths. The sensitivity of the absorption to temperature is thought to be due to a satellite band on the long-wavelength side of the main absorption bands, as shown in the attenuation plots in Fig 1. Thermal population at this energy level causes the attenuation to increase rapidly with temperature.
Farries, M.C.
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Fermann, M.E.
7b069725-c906-4b27-9b6d-1034b99b0cf7
Poole, S.B.
67918af2-6d57-43ab-bfdb-89f9a9a78afe
Townsend, J.E.
a5a6f6ef-adb0-4072-8dcb-b6f5b5a47e64
Farries, M.C.
2a86f02d-d271-410f-b065-e417c7df5c8f
Fermann, M.E.
7b069725-c906-4b27-9b6d-1034b99b0cf7
Poole, S.B.
67918af2-6d57-43ab-bfdb-89f9a9a78afe
Townsend, J.E.
a5a6f6ef-adb0-4072-8dcb-b6f5b5a47e64

Farries, M.C., Fermann, M.E., Poole, S.B. and Townsend, J.E. (1987) Distributed temperature sensor using holmium doped optical fibre. International Conference on Integrated Optics and Optical Fiber Communication/Conference on Optical Fiber Communication (IOOC/OFC), United States.

Record type: Conference or Workshop Item (Paper)

Abstract

Preliminary results of an optical-fiber distributed temperature sensor using neodymium as the active fiber dopant have been reported. An investigation has been made of fibers doped with the rare earths neodymium, erbium, praseodymium, and holmium which were fabricated using the method previously reported. Silica fiber doped with holmium has an order of magnitude greater temperature sensitivity than the other rare earths. The sensitivity of the absorption to temperature is thought to be due to a satellite band on the long-wavelength side of the main absorption bands, as shown in the attenuation plots in Fig 1. Thermal population at this energy level causes the attenuation to increase rapidly with temperature.

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More information

Published date: January 1987
Additional Information: Technical digest paper W15
Venue - Dates: International Conference on Integrated Optics and Optical Fiber Communication/Conference on Optical Fiber Communication (IOOC/OFC), United States, 1987-01-01

Identifiers

Local EPrints ID: 77632
URI: https://eprints.soton.ac.uk/id/eprint/77632
PURE UUID: bdb87f96-da82-4bc8-b3a7-82d410f5df03

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:30

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Contributors

Author: M.C. Farries
Author: M.E. Fermann
Author: S.B. Poole
Author: J.E. Townsend

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