Huang Quandong, Yu Yongqin, Li Xuejin, Chen Xue, Zhang Yufeng, Zhou Wen, Du Chenlin
Opt Express. 2015 Feb 9;23(3):3010-9. doi: 10.1364/OE.23.003010.
A one-dimensional micro-bending vector sensor based on two-mode interference has been introduced. This device was fabricated by lateral offset splicing a piece of six-air-hole grapefruit microstructure fiber (GMF) with single mode fiber (SMF). Variation of effective mode index occurred by micro-bending was investigated in simulation and experiment. This device exhibits micro-bending sensitivities of 0.441 nm/m(-1) and -0.754 nm/m(-1) at 0° and 180° bending orientations, respectively. Moreover, this sensor is immune to surrounding refractive index (SRI) and presents a low crosstalk of temperature.
一种基于双模干涉的一维微弯曲矢量传感器已被引入。该器件通过将一段六气孔柚子微结构光纤（GMF）与单模光纤（SMF）进行横向错位拼接制成。通过模拟和实验研究了微弯曲引起的有效模式折射率变化。该器件在0°和180°弯曲方向上分别表现出0.441 nm/m⁻¹和 -0.754 nm/m⁻¹的微弯曲灵敏度。此外，该传感器对周围折射率（SRI）免疫，并且呈现出低的温度串扰。
