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级联TFBG的应用用于波长偏移式SRI测量,降低极化交叉灵敏度

Damian Harasim¹, Piotr Kisała¹

¹Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, Nadbystrzycka Str. 38D, 20-618 Lublin, Poland.

Sensors (Basel, Switzerland)

|April 28, 2025

概括

这项研究引入了垂直纤维布拉格格 (P-TFBG) 以减少折射率传感中的偏振干扰. P-TFBG提供了更广泛的测量范围,并保护结果免受功率波动的影响.

科学领域:

光学是什么?光学是什么?光学是什么?
光纤传感器光纤传感器
材料科学材料科学材料科学

背景情况:

纤维布拉格格 (FBGs) 广泛用于传感应用.
在TFBG中覆盖共振波长的变化是实际的传感参数,独立于功率波动.
单个TFBG折射率传感高度依赖输入光极化.

研究的目的:

开发一种新的光纤传感器结构,以减轻折射率测量中的偏振依赖.
为了研究级格子结构的有效性,称为垂直TFBG (P-TFBG),用于增强的折射率传感.

主要方法:

单个TFBG和P-TFBG传感器的制造和特征.
对覆盖模式波长的分析根据周围折射率 (SRI) 的变化而发生变化.
单个TFBG和P-TFBG配置之间的偏振依赖的比较.

主要成果:

与单个TFBG相比,P-TFBG显著降低了覆盖模式波长转移的偏振依赖,达到16.15%.
使用模式波长分析为SRI检测提供了更广泛的测量范围.
该P-TFBG系统证明了对光源或光纤曲的功率波动的稳定性.

结论:

P-TFBG是一个有前途的传感器架构,用于准确和稳定的折射率测量.
这种方法克服了传统TFBG传感器极化灵敏度的局限性.
通过专注于波长变化而不是振幅变化,P-TFBG 能够实现更可靠的传感.

关键词:

级联纤维结构的级联纤维结构.光的极化是因为光的极化.折射测量是一种折射测量.倾斜的布拉格格子倾斜的布拉格格子

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