Intensity-modulated magnetic field sensor based on magnetic fluid and optical fiber gratings

Zheng, Jie; Dong, Xinyong; Zu, Peng; Ji, Junyuan; Su, Haibin; Shum, Ping

doi:10.1063/1.4828562

Cited by 71 publications

(29 citation statements)

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“…Interacting the graphene-coated TFBG with various aqueous solutions, we observe strongly enhanced sensitivity in the low-refractive-index region of 1-1.428, which is about 10-fold extended from that of the unloaded TFBG. The graphene-coated TFBGs present great potentials in the biochemical sensing window.Surrounding refractive-index (SRI) sensing is critically important in various areas ranging from biochemical industries to environmental monitoring and life sciences, where the sensing for surrounding parameters can be converted to the measurement of refractive index [1,2]. In particular, hugely involved in biochemical field, a large amount of inorganic and organic substances are in an aqueous environment, so the variation of the refractive index close to that of water is well worth monitoring and investigating.…”

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confidence: 99%

“…Surrounding refractive-index (SRI) sensing is critically important in various areas ranging from biochemical industries to environmental monitoring and life sciences, where the sensing for surrounding parameters can be converted to the measurement of refractive index [1,2]. In particular, hugely involved in biochemical field, a large amount of inorganic and organic substances are in an aqueous environment, so the variation of the refractive index close to that of water is well worth monitoring and investigating.…”

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confidence: 99%

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Graphene-coated tilted fiber-Bragg grating for enhanced sensing in low-refractive-index region

Jiang

Gan

et al. 2015

Opt. Lett.

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We propose and experimentally demonstrate a method to significantly extend the sensitive window of tilted fiber-Bragg grating (TFBG) into low-refractive-index region with the integration of graphene coating. The coupling between cladding modes of TFBG and graphene coating results in an obvious modification of the cladding-mode envelope, which provides a sensitive regime relying on graphene's complex refractive index. Interacting the graphene-coated TFBG with various aqueous solutions, we observe strongly enhanced sensitivity in the low-refractive-index region of 1-1.428, which is about 10-fold extended from that of the unloaded TFBG. The graphene-coated TFBGs present great potentials in the biochemical sensing window.

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confidence: 99%

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Graphene-coated tilted fiber-Bragg grating for enhanced sensing in low-refractive-index region

Jiang

Gan

et al. 2015

Opt. Lett.

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“…MF-based fiber-optic magnetic field sensors have been attracting increasing research interests, and a good variety of fiber-optic magnetic sensor schemes have been demonstrated by using MF as the cladding material in fiber-optic interferometers [11][12][13][14] and fiber gratings. 15,16 Magnetic field measurement could also be achieved by immersing the microfiber knot inside the MFs 17 or infiltrating MFs into the air holes of photonic crystal fiber (PCF) [18][19][20][21] and PCF-based multi-mode interferometers (MMIs). 22,23 However, the temperature-induced cross-sensitivity affects the accurate measurement of magnetic field intensity.…”

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Simultaneous measurement of temperature and magnetic field based on a long period grating concatenated with multimode fiber

Miao

Zhang

Lin

et al. 2015

Applied Physics Letters

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Articles you may be interested inReal time and simultaneous measurement of displacement and temperature using fiber loop with polymer coating and fiber Bragg grating Rev. Sci. Instrum. 85, 075002 (2014); 10.1063/1.4889885 A compact bellows-driven diamond anvil cell for high-pressure, low-temperature magnetic measurements Rev. Sci. Instrum. 85, 033901 (2014); 10.1063/1.4867078 Magnetic field sensing based on tilted fiber Bragg grating coated with nanoparticle magnetic fluid Appl. Phys. Lett. Lithium niobate nanoparticulate clad on the core of single mode optical fiber for temperature and magnetic field sensing Appl. Phys. Lett. 101, 043102 (2012); 10.1063/1.4738884 Amplified spontaneous emission-based technique for simultaneous measurement of temperature and strain by combining active fiber with fiber gratings Rev. Sci. Instrum. 73, 3369 (2002);

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“…To compensate the temperature effect, one can immerse a reference fiber into the same MF without applying magnetic field [12]. Intensity-modulation of magnetic field intensity and temperature has been also achieved by using MF-based TFBG and chirped-fiber Bragg grating presently [13]. However, these kinds of sensors mentioned above are made use of particular kinds of fiber or with special processes.…”

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confidence: 98%

Magnetic field sensor based on reflection spectrum measurement of fiber Bragg grating

et al. 2014

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A novel magnetic field sensor by using an optical fiber Bragg grating (FBG) cascaded by a cleaved optical fiber end, which is face surrounded with magnetic fluid (MF), is experimentally demonstrated. Through Fresnel reflection (FR) of the fiber end face, side mode suppression ratio (SMSR) of reflection spectrum of the FBG is tuned by refractive index (RI) of the MF, which is sensitivity to the external magnetic field. As a result, magnetic field measurement is successfully achieved. Compared with previously reported methods based on FR of a fiber end only, it eliminates the influence of power level fluctuation of the optical source and therefore improves the measurement accuracy and stability. Furthermore, temperature can be measured simultaneously by monitoring wavelength shift of the FBG.

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Intensity-modulated magnetic field sensor based on magnetic fluid and optical fiber gratings

Cited by 71 publications

References 20 publications

Graphene-coated tilted fiber-Bragg grating for enhanced sensing in low-refractive-index region

Graphene-coated tilted fiber-Bragg grating for enhanced sensing in low-refractive-index region

Simultaneous measurement of temperature and magnetic field based on a long period grating concatenated with multimode fiber

Magnetic field sensor based on reflection spectrum measurement of fiber Bragg grating

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