近年来，越来越多的学者对基于侧面抛磨的光纤传感器进行了研究和报道。一些

In recent years, more and more scholars have studied and reported on fiber optic sensors based on side polishing. Some sensors are filled with metal inside the fiber. Although the sensitivity of this type of sensor is high, the analyte to be detected still needs to be internally filled with a special method. This complex processing method greatly reduces the convenience of the sensor, and ordinary sensors are gradually unable to meet the growing needs, which limits the wide application of sensors. In order to increase the convenience of optical fiber sensors, people began to optimize the sensor from the perspective of changing the fiber structure parameters. One of the methods is to make the D-groove by polishing the optical fiber at the side. The detection is performed, and the analyte does not need to be filled into the cladding of the optical fiber by other methods, which is not only convenient but also has good sensitivity.

In recent years, more and more scholars have studied and reported on the fiber optic sensor based on side grinding. Some sensors fill the inside of the fiber with metal. Although these sensors are highly sensitive, the detected anaesis still need to be internally populated in a special way. This complex processing method greatly reduces the convenience of the sensor, the ordinary sensor gradually can not meet the growing demand, limiting the wide application of the sensor. In order to increase the convenience of fiber optic sensors, people began to optimize the sensors from the perspective of changing the parameters of fiber optic structure, one of the methods is to make D-slots through side-grinding fiber, such a convenient is that such sensors can be directly inserted into the analysis for detection, and the analysis does not need to be filled into the fiber envelope by other means, not only convenient but also has good sensitivity.

In recent years, more and more scholars have studied and reported the fiber optic sensor based on side polishing. Some sensors are filled with metal inside the fiber. Although the sensitivity of this kind of sensor is very high, the analyte to be detected still needs to be filled with special methods. This complex processing method greatly reduces the convenience of the sensor, and the common sensor gradually can not meet the growing needs, which limits the wide application of the sensor. In order to increase the convenience of optical fiber sensor, people began to optimize the sensor from the perspective of changing the structural parameters of optical fiber. One of the methods is to make d-groove by side polishing optical fiber. Such convenience lies in that this kind of sensor can be directly inserted into the analyte for detection, and the analyte does not need to be filled into the cladding of optical fiber by other ways, which is not only convenient And it has good sensitivity.<br>