摘要
本研究提出了一种基于手性微锥结构的长周期光纤光栅(long-period fiber grating,LPFG)。该结构通过电弧放电技术在偏芯光纤上制备而成。手性微锥结构的引入显著提升了传感器的性能,不仅大幅提高了其扭转灵敏度,还使传感器具有辨别扭转方向的能力。为深入探究这种手性微锥结构长周期光纤光栅的传感特性,采用了仿真与实验相结合的方法。研究结果表明,本文提出的传感器具有方向辨别能力,其灵敏度高达592.1 pm/(rad·m^(−1))。与没有引手性结构的长周期光纤光栅相比,不仅具有方向辨别功能,而且灵敏度提升了近3倍。此传感器具有尺寸小、制备简单、高灵敏度的特点,在健康监测、精确测量等领域具有广泛的应用前景。
A long-period fiber grating(LPFG)based on chiral micro-taper structure was proposed.The chiral micro-taper structure was fabricated on the eccentric optical fiber through arc discharge technology,and its introduction significantly enhanced the performance of the sensor,which not only greatly improved its torsional sensitivity,but also enabled the sensor to have the ability to identify the torsional direction.To deeply explore the sensing characteristics of this chiral micro-taper structure long-period fiber grating,a method combining simulation and experiments was adopted.The research results show that the proposed sensor has the ability of direction discrimination,and its sensitivity is as high as 592.1 pm/(rad·m^(−1)).Compared with long-period fiber gratings without chiral structures,it not only has the function of direction discrimination,but also its sensitivity is increased by nearly three times.This sensor features small size,simple preparation and high sensitivity,and has broad application prospects in fields such as health monitoring and precise measurement.
作者
宋睿成
刘蒙云
白瑶
何学兰
王铁滨
邢键
李文超
崔双龙
SONG Ruicheng;LIU Mengyun;BAI Yao;HE Xuelan;WANG Tiebin;XING Jian;LI Wenchao;CUI Shuanglong(School of Computer and Control Engineering,Northeast Forestry University,Harbin 150040,China;School of Physics and Optoelectronic Engineering,Harbin Engineering University,Harbin 150006,China)
出处
《应用光学》
北大核心
2025年第5期1135-1142,共8页
Journal of Applied Optics
基金
国家自然科学基金(62205087)
东北林业大学大学生创新创业训练计划(202410225004)。
关键词
手性微锥结构
长周期光纤光栅
偏芯光纤
电弧放电技术
chiral micro-taper structure
long-period fiber gratings
eccentric fiber
arc discharge technology
