Optimization of a Practical Birefringence Fiber Optic Temperature Sensor
Wang Yong Liao Yanbiao (Department of Electronic Engineering, Tsinghua University, Beijing 100084) Xin Jun Lin Tiesheng Feng Qibo (Department of Physics, Northern Jiaotong University, Beijing 100044)
Based on the birefringence effect, a practical reflective fiber optic temperature sensor was developed with the polarization modulated method. The relations among the accuracy, sensitivity and parameters including the source, crystal and optical fiber, are analyzed in terms of theory and experiments. The methods of selecting the optimal system parameters are illustrated.