基于石墨烯的全光纤温度传感器的研究  

All-Fiber Temperature Sensor Based on Graphene

作　　者：廖国珍[1] 张军[1,2] 蔡祥[3] 谭绍早[3] 唐洁媛[1,2] 肖毅[1,2] 陈哲[1,2] 余健辉[1,2] 庞其昌[1,2] 

机构地区：[1]暨南大学光电工程系,广东广州510632 [2]暨南大学光电信息与传感技术广东高校重点实验室,广东广州510632 [3]暨南大学化学系,广东广州510632

出　　处：《光学学报》2013年第7期19-25,共7页Acta Optica Sinica

基　　金：国家自然科学基金(51172099;61275046;21006038;11004086);广东省战略性新兴产业核心技术攻关项目(2012A032300016);广东高校优秀青年创新人才培养计划项目(LYM10024)

摘　　要：研究了一种基于还原氧化石墨烯(rGO)的全光纤温度传感器。此传感器利用侧边抛磨光纤(SPF)作为基底,采用改进氧化-还原法得到的石墨烯作为敏感材料。通过自然蒸发沉积方法,将rGO沉积于SPF的抛磨区,使rGO与光纤光场发生相互作用。实验结果表明温度变化可明显改变rGO对传输光场的作用,使通过传感器的光功率发生显著的变化。当温度从-7.8℃到77℃变化时,通过传感器的光功率发生11.3dB的变化,光功率随温度变化的线性相关系数高达99.4%。测温精度可达0.03℃,灵敏度为0.134dB/℃,响应速度大于0.0228℃/s。An all-fiber temperature sensor based on reduced graphene oxide （rGO） is studied. Such a sensor consists of two key parts, including a section of side polished fiber （SPF） as a substrate and rGO film as temperature sensitive material which is deposited onto the SPF by spontaneous evaporation. Experimental results show that temperature change can affect the interaction between rGO film and propagation mode in SPF, and change the transmitting optical power through rGO-based SPF sensor. When temperature power of the sensors spans over 11.3 dB. The sensitivity SPF sensor are measured to be 0. 134 dB/℃ and 0.03 ℃ , temperature and transmission optical power is 99.4 % and changes from - 7.8 ℃ to 77 ℃, the transmitting optical and temperature measurement accuracy of the rGO-based respectively. The linear correlation of the sensor between response rate is at least 0. 0228 ℃/s.

关 键 词：光纤光学 侧边抛磨光纤 温度传感器 光纤传感 还原氧化石墨烯 

分 类 号：TN253[电子电信—物理电子学]