新型白光干涉网络结构及其耦合器参数优化

摘要

In order to improve the multiplexing ability of optical sensors, based on the low interferential optic fiber sensing technology, using unbalanced Mach-Zehnder interferometer structure, two new types of fiber optic white light interferometric multiplexing networks are designed, and the coupler parameter optimization formula are also given. Through the simulation of two kinds of network structures, the multiplexing capability was analyzed, and fi-nally the experiments were conducted to validate the simulation. The simulation results show that, two kinds of net-work topological structures can multiply more optical fiber sensors, improve the structure of the multiplexing capa-bility, and have stronger loading ability. The optimization formula enhances the multiplexing capability of the struc-ture. The experimental results have good agreement with the numerical simulation.%为了提高传感器的多路复用能力，基于低相干光纤传感技术，采用非平衡的Mach-Zenhnder干涉仪的结构，设计了2种新型光纤白光干涉多路复用网络，并针对结构提出了耦合器参数优化公式。通过仿真对2种网络结构的复用能力进行分析，最后进行了实验验证。仿真结果表明，2种网络拓扑结构能够复用更多的光纤传感器，提高了结构的多路复用能力，带载能力更强，并且优化方法的使用提高了结构的复用能力。实验结果与仿真结果一致。