摘要
微结构的光子晶体光纤,通过填充光敏等功能材料,具有可调谐、全光纤结构和易于集成等优点,是光纤光子器件发展的重要方向.毛细管法将高折射率的匹配液,填充到空心光子晶体光纤中邻近纤芯的空气孔中,两端熔接单模光纤,制成高灵敏的应变传感器.实验表明,当填充30mm长,折射率为1.508的匹配液时,测得应变灵敏度约为每应变4.36pm.实验结果与仿真结果相符,这种装置可用于高灵敏的应变传感.
Functional materials infiltrated photonic crystal fibers are optical devices that are wavelength tunable,all in fiber structure and easy to be integrated into optical systems,and have been a prominent research focus in optical fiber photonic devices. A highly sensitive strain sensor is made by selectively infiltrating high refractive index matching liquid into the air holes adjacent to the fiber core of a hollowcore photonic crystal fiber（ PCF） by capillary force,and splicing single mode fibers at both ends of the PCF. A strain sensitivity of 4. 36 pm / με is obtained by a device with infiltration length of 30 mm and liquid refractive index of 1. 508. The experimental results agree well with the simulation predictions. Such a device can be used for strain sensing with high sensitivity.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2016年第9期2164-2167,共4页
Acta Electronica Sinica
基金
国家自然科学基金青年基金项目(No.61108016)
湖北省自然科学基金面上项目(No.2014CFB770)
武汉市科技局项目(No.2015010101010002)
关键词
光纤光学
光子晶体光纤
选择性填充
应变测量
fiber optics
photonic crystal fiber
selective infiltration
strain measurement
