基于Optisystem的全光纤电流传感器建模与仿真研究

Modeling and Simulation Research on Full Optical Fiber Current Sensor Based on Optisystem

介绍了全光纤电流传感器所应用的法拉第效应、圆双折射和马吕斯定理,通过琼斯矩阵建立了系统模型,利用Optisystem光学软件对全光纤电流传感器进行了仿真,对右旋圆偏振光进行正弦相位调制。仿真结果表明,所得输出光强波形与调制信号相符合,验证了所建立的数学模型和系统仿真合理性,为后续传感器结构的实际制作提供参考。

Introduction was made to the principle of Faraday effect, circular birefringence and Marius theorem based on full optical fiber cur- rent sensor. The mathematical model of the system was built by using Jones matrix. The full optical fiber current sensor was simulated through Optisystem optical software, modulating for right-handed circularly polarized light with sinusoidal phase. The results show that the output of light intensity figure can correspond with the modulation signal waveform. It is verified that the mathematical model and system simulation are reasonable, which can effectively provide the reference for future real sensor design and manufacture.