Ultrahigh-Resolution Optical Fiber Thermometer Based on Microcavity Opto-Mechanical Oscillation

被引：4

作者：

Liu, Yize ^{[1
]}

Jiang, Junfeng ^{[1
]}

Liu, Kun ^{[1
]}

Wang, Shuang ^{[1
]}

Niu, Panpan ^{[1
]}

Xu, Tianhua ^{[1
]}

Zhang, Xuezhi ^{[1
]}

Wang, Ziyihui ^{[1
]}

Wang, Tong ^{[1
]}

Ding, Zhenyang ^{[1
]}

Liu, Tiegen ^{[1
]}

机构：

[1] Tianjin Univ, Sch Precis Instrument & Opto Elect Engn, Tianjin 300072, Peoples R China

来源：

ADVANCED PHOTONICS RESEARCH | 2022年 / 3卷 / 09期

基金：

中国国家自然科学基金;

关键词：

fiber sensing; microcavity; opto-mechanical oscillation; WHISPERING-GALLERY MODES; MECHANICAL OSCILLATOR; TEMPERATURE SENSOR;

D O I：

10.1002/adpr.202200052

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-resolution temperature measurement is nerve-wracking obstruction for precise characterization of many physical, chemical, and biological processes. To solve this problem, a novel microcavity-optomechanical-oscillation-based thermometer is proposed. The microcavity serving as a link parametrically couples the mechanical resonator and optical resonator in the same structure and provides a natural and highly sensitive temperature transduction mechanism and ultrahigh-resolution optical demodulation. The mathematical model of geometrical parameters, mechanics, and material properties for temperature response mechanism is established and verified experimentally. The proposed tlhermometer has a thermal sensitivity of 11 300 Hz degrees C-1 and an ultrahightemperature resolution of 1 x 10(-4) degrees C, to the best of one's knowledge, which is the highest temperature resolution with a silica cavity.

引用

页数：9

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