多芯光纤形状传感研究进展

Research Development of Multi-Core Optical Fiber Shape Sensing Technology

多芯光纤在空分复用方面独特的优势引起了人们越来越多的关注,在光纤传感领域也有了更为广泛的应用。多芯光纤形状传感是一种新的光纤感测技术,该技术通过多芯光纤感知被测对象形状和位置的变化,无需依靠其他视觉辅助手段,此外,该技术还具有结构紧凑灵活、不受电磁干扰、易集成安装、传感器无电学连接的优点,可用于航空航天、工业机械和大型建筑等领域的结构监测、地理环境和线缆管道监测、介入治疗追踪等。为此,介绍了多芯光纤的种类及其关键器件的制备方法,并且对多芯光纤形状传感的原理与技术进行了分析,最后综述了多芯光纤形状传感的研究进展,讨论了多芯光纤形状传感当前挑战和未来展望。

Multi-core fiber with the unique advantages in space division multiplexing has attracted more attention in many fields. As a new technology of optical fiber sensing, multicore fiber shape sensing technology can be used to detect the three-dimensional shape and the position without other visual aids. Meanwhile, this technology shows the characteristics of compact structure and easy integration without electromagnetic interference, which can be applied in aerospace, industrial machinery and building structure monitoring, interventional therapy tracking and other fields. This article reviewed the latest progress of multicore fiber shape sensing in recent years, and the key technique of shape sensing technology, are covered in detail. Finally, challenges and future perspectives of multicore fiber shape sensing in practical applications are discussed.