中文摘要：

石英毛细管由于在材料方面与光纤具有天然一致性，被广泛应用于各种结构和功能的光纤传感器中．首先给出光纤和毛细管的模式特性和熔接工艺，在此基础上介绍干涉型毛细管光纤传感器的研究进展，包括法布里．珀罗型、多模干涉型、反谐振型3种形式．接着介绍微腔结合的毛细管光纤传感器研究进展，包括多模光纤．微球腔和锥形内壁毛细管微腔．毛细管具有中空结构且其圆柱结构能够支持回音壁模式．最后介绍毛细管光纤传感器的最新研究进展．

英文摘要：

Silica capillary is widely used in optical fiber sensors with different structures and functions since its material has the same inherent property as fibers. This paper first introduce mode distributions and splicing process of the fiber and capillary. The recent advances in optical fiber sensors based on interference-type capillary are present, mainly with the Fabry-Perot type, multimode interference type and anti-resonance type. The re- cent advances in optical fiber sensors based on capillary combined with microcavities are then introduced, including the multimode fiber based sphere microcavity, and the micro- cavity based on cone-shaped in-wall capillary. Finally, we introduce the recent advances of optical fiber sensors based on capillary in the area of optofluidic, because of the center empty channel inside the capillary and the gallery mode. cylinder structure to suppport the whispering gallery mode.