In this paper, we present an 800 nm band fiber Bragg grating sensing interrogation system using TFBG as the core wavelength division component. A charge coupled device (CCD) linear array is put on the focal plane of the lens to detect the light. TFBG is used to tap light out of the fiber core to fiber cladding. The sensing wavelength is from 795 nm to 830 nm, with an accuracy of 20 pm and a scan speed of 100 Hz. Using the FBG sensor, we achieve the temperature sensitivity of 1.8°C and strain sensitivity of 18 με.
|Number of pages||3|
|Publication status||Published - 1 Dec 2006|
- Side detection
- Titled fiber grating