Abstract
The sensitivity of a fibre Bragg grating (FBG) sensor fabricated in polymer optical fibre (POF) to hydrostatic pressure was investigated for the first time. In this initial investigative work a reflected Bragg response of a FBG fabricated in multimode microstructured POF (MMmPOF) was monitored, whilst the hydrostatic pressure was increased up to 10MPa. Positive sensitivities were observed, meaning a positive wavelength shift to increasing pressure, as opposed to negative sensitivities monitored when using a FBG sensor fabricated in silica optical fibre. The FBG sensors fabricated in the MMmPOF gave fractional changes in wavelength and hence sensitivities of at least 64.05×10-6/MPa, which is some 25 times larger than the -2.50×10-6/MPa sensitivity of a FBG sensor fabricated in silica optical fibre that was measured in this work. Furthermore this work highlighted a decrease in sensitivity of the FBG sensor fabricated in the MMmPOF by some 50% by sealing the holes of the mPOF at the tip of the fibre with an adhesive. This offers the potential to tailor the response of the sensor to hydrostatic pressure.
| Original language | English |
|---|---|
| Title of host publication | Third Asia Pacific optical sensors conference |
| Editors | John Canning, Gangding D. Peng |
| Publisher | Society of Photo-Optical Instrumentation Engineers (SPIE) |
| Number of pages | 7 |
| Volume | 8351 |
| ISBN (Print) | 978-0-8194-9027-8 |
| DOIs | |
| Publication status | Published - 2012 |
| Event | 3rd Asia Pacific Optical Sensors Conference (APOS) - Sydney, Australia Duration: 31 Jan 2012 → 3 Feb 2012 |
Publication series
| Name | SPIE proceedings |
|---|---|
| Publisher | SPIE |
| Volume | 8351 |
| ISSN (Print) | 0277-786X |
Conference
| Conference | 3rd Asia Pacific Optical Sensors Conference (APOS) |
|---|---|
| Country/Territory | Australia |
| City | Sydney |
| Period | 31/01/12 → 3/02/12 |
Bibliographical note
Johnson, Ian P.; Webb, David J.; Kalli, Kyriacos, "Hydrostatic pressure sensing using a polymer optical fibre Bragg gratings", Third Asia Pacific optical sensors conference. eds. John Canning; Gangding D. Peng., Vol. 8351 SPIE, 2012. (SPIE proceedings).Copyright notice format: Copyright 2012 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
http://dx.doi.org/10.1117/12.914391