Skip to main content
Article thumbnail
Location of Repository

Effects of high temperature and pressure on silica optical fibre sensors

By J.R. Clowes, J. McInnes, M.N. Zervas and D.N. Payne

Abstract

We report on the effects of liquids at high temperature and pressure on silica optical fibres, sensors and gratings. We propose that the diffusion of molecules into the silica and the resultant expansion of the network are responsible for observed fibre expansions of up to 0.2% and Bragg wavelength increases of 2nm at 1525nm. Amorphous carbon hermetic coating has shown a reduction of these effects by an order of magnitude at 300°C. These results have strong implications for the deployment of fibre sensors in oil wells

Topics: QC, TK
Year: 1998
OAI identifier: oai:eprints.soton.ac.uk:77945
Provided by: e-Prints Soton

Suggested articles

Citations

  1. Comparison of the Decay Behaviour of Negative and Positive Index Change Fibre Bragg Gratings”, IEE Colloq. Optical Fibre Gratings, doi
  2. (1989). M.Tomozawa, “Diffusion of Water into Silica Glass at Low Temperature”, doi
  3. (1986). Side-hole fiber for fiber-optic pressure sensing”, doi
  4. (1995). Tuning and Chirping Fiber Bragg Gratings by Deep Etching”, doi

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.