Quantum-Dot-Based Optical Fiber Temperature Sensor Fabricated by Two-Photon Polymerization  

作　　者：Wang Chao Sun Shengzhi Qian Bin Peng Sida Feng Zeqi Qiu Jianrong 

机构地区：[1]Laboratory of Infrared Materials and Devices,Research Institute of Advanced Technologies,Ningbo University,Ningbo 315211,Zhejiang,China [2]Institute of Light+X Science and Technology,Faculty of Electrical Engineering and Computer Science,Ningbo University,Ningbo 315211,Zhejiang,China [3]State Key Laboratory of Fluid Power and Mechatronic Systems,Zhejiang University,Hangzhou 310027,Zhejiang,China [4]State Key Laboratory of Modern Optical Instrumentation,Zhejiang University,Hangzhou 310027,Zhejiang,China

出　　处：《激光与光电子学进展》2024年第23期431-437,共7页Laser & Optoelectronics Progress

基　　金：国家重点研发计划(2021YFB2802001);国家自然科学基金(U20A202112104397);宁波市自然科学基金(2023J120)。

摘　　要：Temperature is a common and significant physical quantity,particularly under harsh conditions such as a high voltage or strong electric/magnetic fields.In this study,we developed an all-fiber-optic temperature sensor based on a fiber-end microstructure doped with quantum dots(QDs).The microstructure was fabricated on a fiber tip using twophoton polymerization technology.The results show that the fluorescence intensity of the QD microstructure is reduced with an increase in temperature,and the peak position of photoluminescence exhibits a linear change in the temperature range of 26-70℃.The developed sensor exhibits a high-temperature sensitivity of 135 pm/℃.The proposed method has enormous potential for the development of fiber-end temperature sensors.

关 键 词：two-photon polymerization femtosecond laser temperature sensors quantum dots optical fiber 

分 类 号：TP212.6[自动化与计算机技术—检测技术与自动化装置]