Magnetic field sensor based on a dual-frequency optoelectronic oscillator using cascaded magnetostrictive alloy-fiber Bragg grating-Fabry Perot and fiber Bragg grating-Fabry Perot filters

Wu, Beilei; Wang, Muguang; Dong, Yue; Tao, Yu; Mu, Hai‐Bao; Li, Haisu; Yin, Bin; Yan, Fengping; Han, Zhong‐Jie

doi:10.1364/oe.26.027628

Cited by 60 publications

(16 citation statements)

References 34 publications

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“…However, if the frequency is monitored by a DSP unit, the speed can be greatly increased. In addition, our proposed OEO-based sensor can achieve the simultaneous measurements of the RH and temperature by cascading an uncoated FBG-FP filter, similar to the structures that have already proposed [24], [31]. For the proposed OEO in a short-term sensing, the frequency hopping has not occurred.…”

Section: Experiments Resulits and Discussionmentioning

confidence: 85%

“…Moreover, thanks to the new potentials provided by the MPF for sensing applications, the MPF-based OEO is highly appropriate for sensing since it maps the sensing parameters to the change of the frequency in microwave domain, where the electrical spectrum analyzing and digital signal processing (DSP) techniques can be applied to achieve high-speed and high-resolution interrogation. Various OEO-based sensing and measurement systems have been proposed, including temperature sensor [22], strain sensor [23]- [25], transverse load sensor [26], refractive index sensor [27], [28], vibration sensor [29], angular velocity sensor [30] and magnetic field sensor [31].…”

Section: Introductionmentioning

confidence: 99%

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High-Sensitivity Sensing for Relative Humidity and Temperature Based on an Optoelectronic Oscillator Using a Polyvinyl Alcohol-Fiber Bragg Grating-Fabry Perot Filter

Zhang

Wang

et al. 2019

IEEE Access

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In this paper, a relative humidity (RH) and temperature sensing scheme with high sensitivity based on an optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. A polyvinyl alcohol-Fiber Bragg grating-Fabry Perot (PVA-FBG-FP) filter, in which the PVA film acts as an RH-strain transducer, is employed in the OEO to implement a single passband microwave photonic filter (MPF). In the OEO loop, the oscillating frequency is determined by the center frequency of the PVA-FBG-FP filter and the laser source. When the external RH or temperature changes, the central wavelength of PVA-FBG-FP filter is shifted, leading to the change in the center frequency of the MPF. By simply monitoring the variation of oscillating frequency using an electrical spectrum analyzer or a digital signal processor, the measurements for the RH and temperature can be achieved. In the experiment, the sensitivities of the RH and temperature are measured to be as high as 508.3 MHz/%RH and 1.8118 GHz/ • C, respectively.

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Section: Experiments Resulits and Discussionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

High-Sensitivity Sensing for Relative Humidity and Temperature Based on an Optoelectronic Oscillator Using a Polyvinyl Alcohol-Fiber Bragg Grating-Fabry Perot Filter

Zhang

Wang

et al. 2019

IEEE Access

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“…Various new types of magnetic field sensors based on MF are currently being developed [10]; however, considerable advancements are required because MF has strong light absorption and is easily saturated. A magnetostrictive magnetic field sensor sticks to or coats a composite metal material on the surface of an optical fiber and grating as a probe, and measures the magnetic field by detecting the change in the phase of the optical fiber or wavelength of the grating [11]. Although these sensors have high sensitivity, precision, and are widely used in space magnetic field measurement, their stability is susceptible to the environment.…”

Section: Introductionmentioning

confidence: 99%

Magneto-Refractive Effect and Mechanism Analysis of Erbium-Ytterbium Co-Doped Silica Fiber

et al. 2021

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The magneto-refractive properties of Er/Yb co-doped silica fiber (EYDF) are important in magnetic field sensing. Here, we proposed a theoretical calculation model of the EYDF using density functional theory (DFT) and demonstrated it by an interferometric digital hologram magneto-refractive measurement system. The calculation results show that the fiber material, doped with Er/Yb atoms, has a large net spin and asymmetric spin distribution, which enables the elements to play an important role in the magnetic characteristics of the material. The experimental results show that the refractive index of the fiber decreases linearly with the increase of the magnetic field. The sensitivity of EYDF is 3.8279 × 10 -5 RIU/Gs and is two orders of magnitude higher than that of single-mode fiber which is confirmed by the theoretical calculation. It demonstrated that the EYDF has advantages and potential of high sensitivity, miniaturization, and easy integration for magnetic field detection in harsh environments.

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“…So, this kind of FPC plays an important role in fiber sensing. For example, they can be used as pickup for acoustic guitars [5]; a magnetic field detector could be realized by recording the wavelength shift [6]; and they can also be applied as a high-resolution inclinometer [7].…”

Section: Introductionmentioning

confidence: 99%

Miniature Fabry-Perot Cavity Based on Fiber Bragg Gratings Fabricated by Fs Laser Micromachining Technique

Lei

Shi

et al. 2021

Nanomaterials

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Fabry-Perot cavity (FPC) based on Fiber Bragg gratings (FBGs) is an excellent candidate for fiber sensing and high-precision measurement. The advancement of the femtosecond laser micromachining technique provides more choices for the fabrication of FBGs-based FPCs. In this paper, we fabricate miniature FBGs-based FPCs, using the femtosecond laser line-by-line scanning writing technique for the first time. By this method, the FBGs can be limited to a specific area in the fiber core region. The grating length, position, and the distance between two successive FBGs can be conveniently controlled to achieve the desired transmission spectrum. For future applications in sensing, the temperature and strain responses of the fabricated FBGs-based FPCs were studied experimentally. This work provides a meaningful guidance for the fabrication and application of miniature FPCs based on FBGs.

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Magnetic field sensor based on a dual-frequency optoelectronic oscillator using cascaded magnetostrictive alloy-fiber Bragg grating-Fabry Perot and fiber Bragg grating-Fabry Perot filters

Cited by 60 publications

References 34 publications

High-Sensitivity Sensing for Relative Humidity and Temperature Based on an Optoelectronic Oscillator Using a Polyvinyl Alcohol-Fiber Bragg Grating-Fabry Perot Filter

High-Sensitivity Sensing for Relative Humidity and Temperature Based on an Optoelectronic Oscillator Using a Polyvinyl Alcohol-Fiber Bragg Grating-Fabry Perot Filter

Magneto-Refractive Effect and Mechanism Analysis of Erbium-Ytterbium Co-Doped Silica Fiber

Miniature Fabry-Perot Cavity Based on Fiber Bragg Gratings Fabricated by Fs Laser Micromachining Technique

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