用于高灵敏度温度测量的光纤内钛酸钡微球谐振器。

In-Fiber BaTiO Microsphere Resonator for High-Sensitivity Temperature Measurement.

作者信息

Li Chi, Zhu Meng, Ji Peng, Xiong Cong, Liao Changrui

机构信息

Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China.

出版信息

Micromachines (Basel). 2021 Mar 18;12(3):318. doi: 10.3390/mi12030318.

DOI:10.3390/mi12030318

PMID:33803684

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8002858/

Abstract

A fiber optic whispering gallery mode (WGM) resonator was proposed and realized by integrating an inline polymer waveguide with a microsphere mounted on it. The polymer waveguide with a diameter of 1 μm was printed with femtosecond laser-assisted multiphoton polymerization in a section of a grooved hollow-core fiber, which was sandwiched between two single-mode fibers. Two WGW resonators assembled with microspheres of different sizes were prepared. The transmission spectra of those stimulated WGMs were investigated both in simulation and experimentally. The temperature response of the resonators was particularly studied, and a linear sensitivity of -593 pm/°C was achieved from 20 °C to 100 °C.

摘要

通过将内嵌聚合物波导与安装在其上的微球集成，提出并实现了一种光纤回音壁模式（WGM）谐振器。直径为1μm的聚合物波导通过飞秒激光辅助多光子聚合印刷在一段带凹槽的空心光纤中，该空心光纤夹在两根单模光纤之间。制备了两个装配有不同尺寸微球的WGW谐振器。对这些受激WGM的传输光谱进行了模拟和实验研究。特别研究了谐振器的温度响应，在20℃至100℃范围内实现了-593 pm/℃的线性灵敏度。