基于游标效应的增敏型光纤法布里-珀罗干涉仪温度传感器

发布时间：2018-03-20 04:01

  本文选题：光纤传感　切入点：法布里-珀罗干涉仪　出处：《物理学报》2017年09期 　论文类型：期刊论文

【摘要】：本文介绍了一种高灵敏度光纤温度传感器.该传感器由一小段毛细管熔接于单模光纤和一段大模场光纤之间而构成串联的两个法布里-珀罗干涉仪.由于俩干涉仪具有相近的自由光谱区,因而它们的叠加光谱会产生游标效应.实验结果显示,利用游标效应解调,该传感器的温度灵敏度可从单一空气腔法布里-珀罗干涉仪的0.71 pm/℃提高到179.30 pm/℃.该传感器结构紧凑(1 mm)且灵敏度高,具有良好的应用前景.
[Abstract]:In this paper, a high sensitivity optical fiber temperature sensor is introduced. The sensor consists of a small piece of capillary tube fused between a single mode fiber and a large mode field fiber and constitutes two Fabry-Perot interferometers in series. The instrument has similar free spectrum region, Therefore, the superposition spectrum of them will produce the cursor effect. The experimental results show that, using the cursor effect to demodulate, The temperature sensitivity of the sensor can be increased from 0.71 pm/ 鈩，

本文编号：1637391