Experimental demonstration of multi-parameter sensing based on polarized interference of polarization-maintaining few-mode fibers

Zhao, Jian; Xu, Jinsheng; Wang, Chongxi; Liu, Yaping; Yang, Zhiqun

doi:10.1364/oe.396019

Cited by 15 publications

(5 citation statements)

References 17 publications

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“…These applications include short-and long-haul communications, active fiber devices for use in fiber lasers, supercontinuum sources, and other nonlinear optical systems and biomedical devices. In particular, it was realized that fibers with cores able to support "a few" modes had sufficient mode stability to sustain independent channels of information over long distances without intermodal mixing (thereby leading to "mode division multiplexing") [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. In the same category, MCFs that carry information in independently guiding cores within an optical fiber also have many interesting new sensing applications .…”

Section: Fiber Modes In Multimode and Multicore Systemsmentioning

confidence: 99%

Mode-division and spatial-division optical fiber sensors

et al. 2022

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The aim of this paper is to provide a comprehensive review of mode-division and spatial-division optical fiber sensors, mainly encompassing interferometers and advanced fiber gratings. Compared with their single-mode counterparts, which have a very mature field with many highly successful commercial applications, multimodal configurations have developed more recently with advances in fiber device fabrication and novel mode control devices. Multimodal fiber sensors considerably widen the range of possible sensing modalities and provide opportunities for increased accuracy and performance in conventional fiber sensing applications. Recent progress in these areas is attested by sharp increases in the number of publications and a rise in technology readiness level. In this paper, we first review the fundamental operating principles of such multimodal optical fiber sensors. We then report on the theoretical formalism and simulation procedures that allow for the prediction of the spectral changes and sensing response of these sensors. Finally, we discuss some recent cutting-edge applications, mainly in the physical and (bio)chemical fields. This paper provides both a step-by-step guide relevant for non-specialists entering in the field and a comprehensive review of advanced techniques for more skilled practitioners.

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Section: Fiber Modes In Multimode and Multicore Systemsmentioning

confidence: 99%

Mode-division and spatial-division optical fiber sensors

et al. 2022

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“…Based on the waveguide structure, the femtosecond laser processing can easily achieve multi-wavelength multiplexing [37] or multiparameter sensing-related [38] applications. Bragg gratings are widely used as a sensor to measure refractive index, temperature, strain, and other parameters; any bending and strain of the grating section must be avoided when measuring refractive index and temperature, which is usually achieved by being placed in a capillary or straightened for a fiber case [39,40]. The presented PLC Bragg grating can avoid the cross-sensitivity caused by stress and bending, thus greatly simplifying the measurement and improving the detection sensitivity.…”

Section: Characterization Of Uniform and Cascaded Bragg Gratingsmentioning

confidence: 99%

Femtosecond Laser Modification of Silica Optical Waveguides for Potential Bragg Gratings Sensing

et al. 2022

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The optimum femtosecond laser direct writing of Bragg gratings on silica optical waveguides has been investigated. The silica waveguide has a 6.5 × 6.5 µm2 cross-sectional profile with a 20-µm-thick silicon dioxide cladding layer. Compared with conventional grating inscribed on fiber platforms, the silica planar waveguide circuit can realize a stable performance as well as a high-efficiency coupling with the fiber. A thin waveguide cladding layer also facilitates laser focusing with an improved spherical aberration. Different from the circular fiber core matching with the Gaussian beam profile, a 1030-nm, 400-fs, and 190-nJ laser is optimized to focus on the top surface of the square silica waveguide, and the 3rd-order Bragg gratings are inscribed successfully. A 1.5-mm long uniform Bragg gratings structure with a reflectivity of 90% at a 1548.36-nm wavelength can be obtained. Cascaded Bragg gratings with different periods are also inscribed in the planar waveguide. Different reflection wavelengths can be realized, which shows great potential for wavelength multiplexing-related applications such as optical communications or sensing.

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“…Wei et al proposed a multi-parametric sensor, which first established the heterocore structure of multi-mode fiber-single-mode fiber-multi-mode fiber (MSM), and used laser CO2 to realize the sawtooth structure for sensing [10] of strain, temperature and torque. Using a few-mode fiber to sense [11] with temperature, strain and transverse force, Zhao et al According to the above research findings, the multi-parameter optical fiber sensor has had a relatively vigorous development. At the same time, magnetic field as an important parameter in industrial detection, aerospace and other fields, its accurate detection is very important.…”

Section: Introductionmentioning

confidence: 99%

FBG cascade EFPI multi-parameter optical fiber sensor based on GMPC coating

Liu,

Tao,

Feng

et al. 2023

AOPC 2023: Optic Fiber Gyro

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Magnetic sensitive material, giant magnetostrictive powder composite (GMPC), coated fiber bragg grating (FBG) cascaded extrinsic Fabry Pérot interferometer (EFPI) multi-parameter optical fiber sensor is proposed. Which enables the simultaneous detection of temperature, magnetic field and strain. The proposed sensor uses a double FBG cascade EFPI structure including GMPC coated FBG with a wavelength of 1550 nm to achieve magnetic field sensing. The results show that the sensor has a maximum temperature sensitivity of 175.4 pm/℃, a maximum magnetic field sensitivity of -1.54 pm/mT and a maximum stress sensitivity of -9.55 pm/με. The proposed multi-parameter optical fiber sensor solves the multi-parameter cross-sensitivity problem, while the sensor has the characteristics of low cost, interference resistance, compact structure, simple preparation process and long distance transmission. The sensor has promising applications in areas such as biomedicine, environmental detection and military applications, and oil well survey, industrial production, power systems and so on.

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Experimental demonstration of multi-parameter sensing based on polarized interference of polarization-maintaining few-mode fibers

Cited by 15 publications

References 17 publications

Mode-division and spatial-division optical fiber sensors

Mode-division and spatial-division optical fiber sensors

Femtosecond Laser Modification of Silica Optical Waveguides for Potential Bragg Gratings Sensing

FBG cascade EFPI multi-parameter optical fiber sensor based on GMPC coating

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