用于海水温度和盐度传感的高灵敏度双通道迈克尔逊干涉仪

IF 5.9 2区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Instrumentation and Measurement Pub Date : 2025-09-09 DOI:10.1109/TIM.2025.3604931

Yuxi Ma;Bing Han;Qian Cheng;Yiming Tao;Yihan Qiu;Luyao Wang;Ting Feng;Yong Zhao

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引用次数: 0

摘要

采用单模光纤(SMF) -多模光纤(MMF) -双芯光纤（TCF）依次拼接，设计了一种结构紧凑、灵敏度高的海水温度和盐度传感双通道迈克尔逊干涉仪。采用飞秒激光微加工技术，在TCF的双纤芯上精确制作了两个d型微腔，用于温度和盐度传感。此外，采用增强的高反射率反射镜来提高光谱对比度。实验结果表明，该传感器在$10~^{\circ}$ C - $25~^{\circ}$ C范围内具有−3.26 nm/°C的稳定温度性能，并且在5‰~ 40‰盐度区间内，具有−2.95 nm/‰（相当于$-15~265$ nm/RIU）的优异盐度灵敏度。此外，所提出的传感器具有显著的稳定性和高可重复性，从而为海洋环境的监测提供了一个创新的视角。

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Highly Sensitive Dual-Channel Michelson Interferometer for Seawater Temperature and Salinity Sensing

A highly compact and superior sensitivity dual-channel Michelson interferometer for seawater temperature and salinity sensing is demonstrated, which is successively constructed by splicing single-mode fiber (SMF)–multimode fiber (MMF)–twin-core fiber (TCF) in sequence. Employing femtosecond laser microprocessing technology, two D-type microcavities are precisely fabricated on the dual fiber cores of the TCF for the purpose of temperature and salinity sensing. Furthermore, an enhanced high-reflectivity mirror is employed to improve the spectral contrast. The results obtained from the experiment illustrate that the proposed sensor demonstrates a remarkably stable temperature performance of −3.26 nm/°C in

$10~^{\circ }$

C–

$25~^{\circ }$

C. Besides, in the salinity interval of 5‰–40‰, a superior salinity sensitivity of −2.95 nm/‰ (equivalent to

$-15~265$

nm/RIU) is proved. Moreover, the proposed sensor exhibits remarkable stability and high repeatability, thus proffering an innovative perspective for the surveillance of the marine environment.

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来源期刊

IEEE Transactions on Instrumentation and Measurement 工程技术-工程：电子与电气

CiteScore

9.00

自引率

23.20%

发文量

1294

审稿时长

3.9 months

期刊介绍： Papers are sought that address innovative solutions to the development and use of electrical and electronic instruments and equipment to measure, monitor and/or record physical phenomena for the purpose of advancing measurement science, methods, functionality and applications. The scope of these papers may encompass: (1) theory, methodology, and practice of measurement; (2) design, development and evaluation of instrumentation and measurement systems and components used in generating, acquiring, conditioning and processing signals; (3) analysis, representation, display, and preservation of the information obtained from a set of measurements; and (4) scientific and technical support to establishment and maintenance of technical standards in the field of Instrumentation and Measurement.