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一个基于四核纤维的新型MZI纤维传感器,具有增强的曲率和应变灵敏度

Xiaojun Zhu¹, Feijie Chen², Haoran Zhuang²

¹School of Microelectronics and Integrated Circuits (Jiangsu Key Laboratory of Semi. Dev. & IC Design, Package and Test), Nantong University, Nantong 226019, China.

|January 8, 2025

概括

这项研究引入了一种新的光纤传感器,用于测量曲率和应变. 该传感器使用无核纤维和四核纤维的独特组合实现了高灵敏度,从而实现了精确的传感应用.

科学领域:

光电学是指光电子产品.
光纤传感器光纤传感器
干涉测量是干涉测量的方法.

背景情况:

马赫-泽恩德干扰仪 (MZIs) 广泛用于传感应用.
提高光纤传感器的灵敏度对于精确的测量至关重要.
需要新的光纤配置来提高传感器性能.

研究的目的:

开发一种高灵敏度的曲率和应变光纤传感器.
为了研究基于无核纤维 (NCF) 和四核纤维 (FCF) 的马赫-泽恩德干扰仪 (MZI) 的传感性能.
探索这种新型传感器设计的潜在应用.

主要方法:

通过使用光纤融合拼接器直接将一段四核光纤 (FCF) 拼接在两段无核光纤 (NCF) 之间来制造传感器.
利用FCF的多路干扰特性和NCF的模式激发特性.
对传感器对不同曲率和张力的响应进行实验性表征.

主要成果:

传感器表现出对曲率的高灵敏度,在0.0104m−1-0.1515m−1范围内达到-78.04dB/m−1,高线性为~0.99.
传感器还表现出显著的应变灵敏度,在0-600 μm范围内的最大值为-6.49 pm / mE.
拟议的NCF-FCF配置有效地激发高阶模式,从而提高传感性能.

结论:

开发的基于NCF-FCF的MZI光纤传感器为曲率和拉伸测量提供了高灵敏度.
传感器的设计利用多路径干扰和更高阶模式激发来提高性能.
这种传感器显示出各种传感和测量应用的巨大潜力.

关键词:

马克·泽恩德干扰仪的干扰仪.曲率传感器是一个曲率传感器.纤维光学传感器传感器四核心纤维纤维的四核心纤维.没有核心的纤维纤维.

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