Abstract
Based on the interferometric demodulation technique, a fiber Bragg grating sensor system employing an unbalance wavelength scanning Michelson interferometer to transpose the strain related spectral signal into phase signal is reported. The strain can be recovered by measuring the phase change of the signal with a phase-meter. Experiment demonstrated that the sensing sensitivity of this system with a resolution of 5.5 nε is 1.80° /με. It basically matches the prospected value of 1.80°/με.
| Original language | Chinese (Simplified) |
|---|---|
| Pages (from-to) | 987-989 |
| Number of pages | 3 |
| Journal | Guangxue Xuebao/Acta Optica Sinica |
| Volume | 21 |
| Issue number | 8 |
| Publication status | Published - 1 Aug 2001 |
Keywords
- Fiber Bragg grating
- Interferometric demodulation
- Sensing resolution
- Sensor
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- General Physics and Astronomy
- Atomic and Molecular Physics, and Optics