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.
| Original language | English |
|---|---|
| Pages (from-to) | 193-197 |
| Number of pages | 5 |
| Journal | Optics Communications |
| Volume | 244 |
| Issue number | 1-6 |
| Early online date | 1 Oct 2004 |
| DOIs | |
| Publication status | Published - 3 Jan 2005 |
Keywords
- optical fibre sensing
- ratiometric detection
- resonant cavity
- time-division-multiplexing