Dynamic Sensor Interrogation Using Wavelength-Swept Laser with a Polygon-Scanner-Based Wavelength Filter

@inproceedings{Kwon2013DynamicSI,
  title={Dynamic Sensor Interrogation Using Wavelength-Swept Laser with a Polygon-Scanner-Based Wavelength Filter},
  author={Yong Seok Kwon and Myeong Ock Ko and Mi Sun Jung and Ik Gon Park and Namje Kim and Sang Pil Han and Han-Cheol Ryu and Kyunghyun Park and Min-Yong Jeon},
  booktitle={Sensors},
  year={2013}
}
We report a high-speed (~2 kHz) dynamic multiplexed fiber Bragg grating (FBG) sensor interrogation using a wavelength-swept laser (WSL) with a polygon-scanner-based wavelength filter. The scanning frequency of the WSL is 18 kHz, and the 10 dB scanning bandwidth is more than 90 nm around a center wavelength of 1,540 nm. The output from the WSL is coupled into the multiplexed FBG array, which consists of five FBGs. The reflected Bragg wavelengths of the FBGs are 1,532.02 nm, 1,537.84 nm, 1,543.48… CONTINUE READING