Abstract
Time-division-multiplexing of fibre Bragg gratings using a novel resonant cavity architecture is described. Independent extraction of amplified optical signals from individual sensors is demonstrated, making it possible to use a low-cost, passive wavelength measurement technique for sensor readout. Using a commercial ratiometric filter component, the complete interrogation system remains simple and solid-state. Results show that the configuration has the capability to deliver static measurements with picometre resolution, or to perform vibration analysis at up to 4.4 kHz. (C) 2004 Elsevier B.V. All rights reserved.
Original language | English |
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Pages (from-to) | 193-197 |
Number of pages | 5 |
Journal | Optics Communications |
Volume | 244 |
Issue number | 1-6 |
DOIs | |
Publication status | Published - 1 Jan 2005 |
Keywords
- optical fibre sensing
- ratiometric detection
- time-division-multiplexing
- resonant cavity