基于Sagnac干涉效应的光子晶体光纤温度传感器建模仿真  

Modeling and Simulation of Photonic Crystal Fiber Temperature Sensor Based on Sagnac Interference Effect

作　　者：韩梦 侯路锦 李玮琳[1] HAN Meng;HOU Lujin;LI Weilin(College of Humanities&Information Changchun University of Technology,Changchun 130000,China)

机构地区：[1]长春工业大学人文信息学院,吉林长春130000

出　　处：《传感器世界》2025年第2期14-20,共7页Sensor World

摘　　要：光纤传感器在温度监测中广泛应用,但传统设计受材料热响应非线性和热传导局限,难以实现微小温度变化下的精确稳定测量,且响应时间长。为此提出基于Sagnac干涉效应的光子晶体光纤温度传感器建模方法,分析折射率及温度变化对光子晶体光纤的影响,并应用Sagnac干涉效应改进现存问题。考虑光纤材料的物理特性及干涉效应对温度变化的敏感响应机制,构建基于该效应的光子晶体光纤温度传感器模型。实验表明,该传感器灵敏度较高,干涉仪输出波长随温度变化反应能力较强,在稳定性测试中表现优异,响应时间短,为实现高精度、实时温度测量提供了有效手段。Optical fiber sensors are widely used in temperature monitoring,but the traditional design is limited by the nonlinear thermal response and thermal conduction of materials,and it is difficult to achieve accurate and stable measurement under small temperature changes,and the response time is long.Therefore,a modeling method of photonic crystal fiber temperature sensor based on Sagnac interference effect is proposed to analyze the influence of refractive index and temperature change on photonic crystal fiber,and the Sagnac interference effect is applied to improve the existing problems.Considering the physical properties of fiber materials and the sensitive response mechanism of interference effect to temperature change,a model of photonic crystal fiber temperature sensor based on the effect is constructed.Experiments show that the sensor has high sensitivity,strong response ability of the output wavelength of the interferometer to change with temperature,excellent performance in stability test,and very short response time,which provides an effective means for realizing high precision and realtime temperature measurement.

关 键 词：Sagnac干涉效应 光子晶体光纤 温度传感器建模 灵敏度 稳定性 

分 类 号：TN253[电子电信—物理电子学]