制作了一种利用普通单模光纤和石墨烯量子点材料共同构建的法布里珀罗湿度传感器.利用搭建的实验系统，在环境相对湿度11% RH~85% RH范围内进行了湿度响应实验，并对湿度上升和下降过程分别进行了测量.湿度上升过程中灵敏度为0.560 6 nm/RH%，线性度为0.999 47；湿度下降过程中灵敏度为0.565 5 nm/RH%，线性度达0.999 36.实验结果表明，该湿度传感器具有较高的响应灵敏度、较好的线性响应特性和测量重复性.另外对该传感头的温度响应特性进行实验研究，得到了较好的线性响应结果，温度响应灵敏度为0.035 nm/℃，残差平方和为0.012 41，灵敏度标准差为2.305×10^-4，湿度响应灵敏度约为温度响应的17倍.对其动态响应特性进行了典型测试，在相对湿度43%条件下得到了干涉光谱波长漂移的动态响应数据，得到了较快的动态响应，其响应时间和恢复时间分别为6.5 s和9.0 s.研究结果为研制低成本、易制作、高灵敏的光纤湿度传感器提供了一种有益的探索.

A kind of Fabry-Perot optical fiber humidity sensor is fabricated by normal single-mode optical fiber and Graphene Quantum Dots.By the established experimental system, the humidity response experiments were carried out in the relative humidity range of 11% RH ~85% RH. The sensitivity was 0.560 6 nm/%RH with 0.999 47 linearity at humidity rising, and 0.565 5 nm/%RH sensitivity with 0.999 36 linearity at humidity falling. The experimental results showed that the humidity sensor has high humidity response sensitivity, good linear response characteristics and measurement repeatability. Furthermore, the temperature responding characteristic is also experimentally investigated. The good linear temperature responding results are got with 0.035 nm/℃ sensitivity, 0.012 41 residual sum of squares, 2.305×10^-4 sensitivity stand error. The humidity response sensitivity is about 17 times of temperature response. Typical tests are given for dynamic response characteristics. The dynamic response data of interference spectrum wavelength drift under 43% RH showed fast dynamic response characteristic. The response time and recovery time were 6.5 s and 9.0 s respectively. The research results provide a beneficial exploration for developing low cost, easily fabricated and high sensitive optical fiber humidity sensor.