High-Speed Interrogation for Large-Scale Fiber Bragg Grating Sensing
AbstractA high-speed interrogation scheme for large-scale fiber Bragg grating (FBG) sensing arrays is presented. This technique employs parallel computing and pipeline control to modulate incident light and demodulate the reflected sensing signal. One Electro-optic modulator (EOM) and one semiconductor optical amplifier (SOA) were used to generate a phase delay to filter reflected spectrum form multiple candidate FBGs with the same optical path difference (OPD). Experimental results showed that the fastest interrogation delay time for the proposed method was only about 27.2 us for a single FBG interrogation, and the system scanning period was only limited by the optical transmission delay in the sensing fiber owing to the multiple simultaneous central wavelength calculations. Furthermore, the proposed FPGA-based technique had a verified FBG wavelength demodulation stability of ±1 pm without average processing. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Hu, C.; Bai, W. High-Speed Interrogation for Large-Scale Fiber Bragg Grating Sensing. Sensors 2018, 18, 665.
Hu C, Bai W. High-Speed Interrogation for Large-Scale Fiber Bragg Grating Sensing. Sensors. 2018; 18(2):665.Chicago/Turabian Style
Hu, Chenyuan; Bai, Wei. 2018. "High-Speed Interrogation for Large-Scale Fiber Bragg Grating Sensing." Sensors 18, no. 2: 665.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.