光通信技术2026，Vol.50Issue(2)：12-17,6.DOI:10.13921/j.cnki.issn1002-5561.2026.02.003
一种用于液体折射率测量的空芯光纤F-P干涉传感器
Hollow fiber F-P interferometric sensor for refractive index measurement
摘要
Abstract
To achieve rapid detection of solution refractive index,a Fabry-Perot interferometric sensor based on hollow-core fi-ber is designed.The single-mode fiber-hollow-core fiber-single-mode fiber structure is adopted,and glycerol-water solutions with different concentrations are used as the test samples for experimental investigation.The influence of hollow-core fiber length(50～300 μm)on sensor sensitivity is systematically examined.The experimental results show that the output peak power of the sensor increases with the decrease of solution refractive index,and a shorter hollow-core fiber leads to higher sen-sitivity.When the hollow-core fiber length is 50 μm,the sensor sensitivity reaches 61.395 77 dBm/RIU with a goodness of fit of R²=0.977 41,which is the optimal length for refractive index detection.关键词
光纤传感/空芯光纤/法布里-珀罗干涉Key words
fibre-optic sensing/hollow-core fibre/Fabry-Perot interference分类
信息技术与安全科学引用本文复制引用
杨颜新,李立彤,席佳伟,邓理,李金泽,见超超,宋欣,孙浩,洪登..一种用于液体折射率测量的空芯光纤F-P干涉传感器[J].光通信技术,2026,50(2):12-17,6.基金项目
国家自然科学基金项目(12304047、62305259)资助 （12304047、62305259）
陕西省自然科学基金项目(2023-JC-QN-0851)资助 （2023-JC-QN-0851）
光纤光缆先进制造与应用技术全国重点实验室(长飞公司)开放课题项目(SKLD1907)资助. （长飞公司）
