Fiber-optic sensors have developed rapidly because of their excellent sensing performances and abilities to detect in remote and harsh environments. However, on some special occasions with high requirements for sensitivity and resolution, the traditional optical fiber sensing mechanism is difficult to meet the detection requirements. Therefore, it is very necessary to explore new sensor sensitization mechanisms. Vernier effect, as a simple and efficient sensitization method, has been extensively researched and applied in fiber-optic sensors in recent years. This review paper firstly presents the working principles and mechanism of the fiber-optic sensors based on the Vernier effect, and then discusses and classifies their common structures. Furthermore, the research progress and applications of such sensors are summarized and discussed. Finally, the further development direction of the fiber-optic sensors based on the Vernier sensitization mechanism is discussed and prospected.

光纤传感器由于其出色的传感性能以及在偏远和恶劣环境中的检测能力而得到了飞速发展。但是，在某些对灵敏度和分辨率有较高要求的特殊场合，传统的光纤传感机制很难满足检测要求。因此，非常有必要探索新的传感器敏化机制。游标效应作为一种简单有效的敏化方法，近年来已被广泛研究并应用于光纤传感器中。本文首先介绍了基于游标效应的光纤传感器的工作原理和机理，然后讨论并分类了它们的常见结构。此外，对这种传感器的研究进展和应用进行了总结和讨论。最后，