Abstract
Controlled by an 1×3 optical switch, light from a pulsed broadband source was launched into one of 3 independent strings of 5 FBG sensors. By introducing suitable length of fiber as time delay between adjacent two gratings in the same string, the return signals can be selected by a programmable electric switch. Demodulation was achieved by using an unbalance Michelson scanning interferometer. Combined spatial-and time-division multiplexing operation was demonstrated successfully.
| Original language | English |
|---|---|
| Pages (from-to) | 1313-1315 |
| Number of pages | 3 |
| Journal | Guangxue Xuebao/Acta Optica Sinica |
| Volume | 21 |
| Issue number | 11 |
| Publication status | Published - 1 Nov 2001 |
| Externally published | Yes |
Keywords
- Combined spatial and time-division multiplexing
- Fiber Bragg grating
- Interferometric demodulation
- Sensing network
- Spatial-division multiplexing
- Time-division multiplexing
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics