基于干涉理论的光纤马赫泽德尔干涉仪分析研究

Theoretically Analysis for All-fiber Mach-Zehnder Interferometer Based on Interference Analysis Method

全光纤的Mach-Zehnder干涉仪是一种重要的干涉器件,因其具有干涉现象、体积小、重量轻、结构紧凑、灵敏度高等特点,可用于光纤通讯和光纤传感领域。本文利用干涉分析方法,通过计算机数值模拟,研究了Mach-Zehnder干涉仪的传输特性,得出了输出端的谱线与两个耦合器的分光比变化的关系。

The all-fiber Mach-Zehnder interferometer is an important interference devices with the viaues of small size, light weight, compact structure and high sensitivity. Therefore, many important applications of it has been found and will be developed during the fiber-optic communications and optical sensing regions. The paper studied the all-fiber Mach-Zehnder interferometer and is numerically simulated with interference analysis method, we get the relationship between output spectrum of the Mach- Zehnder interferometer and the change of optical-fibre coupler splitting ratio.