Multi-functional optical fiber sensor system based on a dense wavelength division multiplexer
Authors: Yin, YX; Wu, ZF; Sun, SW; Tian, L; Wang, XB; Wu, YD; Zhang, DM
CHINESE PHYSICS B
Volume: 28 Issue: 7 Published: JUL 2019 Language: English Document type: Article
We propose a novel and efficient multi-functional optical fiber sensor system based on a dense wavelength division multiplexer (DWDM). This system consists of an optical fiber temperature sensor, an optical fiber strain sensor, and a 48-channel DWDM. This system can monitor temperature and strain changes at the same time. The ranges of these two sensors are from -20 degrees C to 100 degrees C and from -1000 mu epsilon to 2000 mu epsilon, respectively. The sensitivities of the temperature sensor and strain sensor are 0.03572 nm/degrees C and 0.03808 nm/N, respectively. With the aid of a broadband source and spectrometer, different kinds and ranges of parameters in the environment can be monitored by using suitable sensors.