A temperature sensor based on fiber ring laser with novel EYDF and dual Mach-Zehnder interferometer filter

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical Pub Date : 2025-04-26 DOI:10.1016/j.sna.2025.116615

Xinghu Fu, Yihui Fu, Ju Tang, Zhexu Huang, Wa Jin, Guangwei Fu, Weihong Bi

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引用次数: 0

Abstract

A temperature sensor based on a dual Mach-Zehnder interferometer (MZI) in fiber ring laser is proposed and demonstrated. The dual MZI sensor is cascaded by single mode fiber (SMF) and Erbium-Ytterbium doped fiber (EYDF) to build an “SMF-EYDF-SMF-EYDF-SMF” structure to achieve simultaneous sensing and filtering. Experimental results show that when the length of the EYDF in the MZI filter is 5 cm, the laser spectrum exhibits mode-hopping at 110 °C. Additionally, red shifts occur in the temperature ranges from 30 °C to 110 °C and from 110 °C to 180 °C, with sensitivities of up to 45.6 pm/°C and 48.2 pm/°C, respectively. The laser has a very narrow Full Width at Half Maxima (∼0.5 nm) and an excellent signal-to-noise ratio (∼36 dB) with a small laser power fluctuation of 0.28 dB. This system has a large temperature tuning range (∼3.6 nm), which enables the integration of filtering and sensing. Due to the wavelength selection functionality possessed by lasers, it exhibits vast application potential in a multitude of fields, including the wavelength division multiplexing systems, optical network detection, and biomedicine.

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一种基于新型EYDF和双马赫-曾德尔干涉仪滤波器的光纤环形激光器温度传感器

提出并演示了一种基于双马赫-曾德尔干涉仪（MZI）的光纤环形激光器温度传感器。双MZI传感器通过单模光纤（SMF）和掺铒镱光纤（EYDF）级联，构建“SMF-EYDF-SMF-EYDF-SMF”结构，实现同时传感和滤波。实验结果表明，当MZI滤波器中EYDF的长度为5 cm时，激光光谱在110℃时出现跳模现象。此外，红移发生在30°C至110°C和110°C至180°C的温度范围内，灵敏度分别高达45.6 pm/°C和48.2 pm/°C。该激光器在半Maxima处具有非常窄的全宽度（~ 0.5 nm）和优异的信噪比（~ 36 dB），激光功率波动很小，为0.28 dB。该系统具有较大的温度调谐范围（~ 3.6 nm），可实现滤波和传感的集成。由于激光所具有的波长选择功能，它在波分复用系统、光网络检测、生物医学等众多领域显示出巨大的应用潜力。

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...