Abstract
The authors demonstrate that in-fibre Bragg gratings may be successfully used to measure megahertz acoustic fields if the grating length is sufficiently short and the optical fibre is appropriately desensitised. A noise-limited pressure resolution of 4.5 × 10 –3 atm vHz was found. The capability to simultaneously act as a temperature sensor is also demonstrated.
Original language | English |
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Pages (from-to) | 1139-1140 |
Number of pages | 2 |
Journal | Electronics letters |
Volume | 34 |
Issue number | 11 |
DOIs | |
Publication status | Published - 28 May 1998 |
Keywords
- in-fibre Bragg gratings
- measure megahertz acoustic fields
- grating length
- optical fibre
- desensitisation
- temperature sensor