Abstract
We report on the use of a frequency-domain reflectometry technique for multiplexing fiber Bragg grating (FBG) sensors. This technique is based on the modulation of light intensity from a broadband source by a swept-frequency RF carrier. Signals from the FBG sensors located at different positions in an array are separated in the frequency-domain and demodulated using a tunable optical filter. A three FBG sensor system is experimentally demonstrated. The potential of the technique for multiplexing a large number of FBG sensors is discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 488-496 |
| Number of pages | 9 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 3897 |
| Publication status | Published - 1 Dec 1999 |
| Event | Proceedings of the 1999 Advanced Photonic Sensors and Applications - Singapore, Singapore Duration: 30 Nov 1999 → 3 Dec 1999 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics