Few-mode fiber-embedded long-period fiber grating for simultaneous measurement of refractive index and temperature

Zhang, Shuo; Li, Xiang; Niu, Huiwen; Yan, Qi; Sun, Changzheng; Peng, Feng; Ma, Yiwei; Zhang, Kai; Geng, Tao; Yang, Wenlei; Sun, Weimin; Yuan, Libo

doi:10.1364/ao.401444

Cited by 10 publications

(4 citation statements)

References 21 publications

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“…The simulations are compared for different periods of the sensing structure and the position of malposition, and the final period of the sensor was determined to be 4 and the mismatch offset to be 8μm. Based on the above structural analysis, the resonant wavelength of the MS-SMS is determined by the phase matching condition, and therefore, the resonant wavelength res  can be described as [16] : , ( )…”

Section: Fig 2 Schematic Diagram Of Gimmf Light Field Simulationmentioning

confidence: 99%

Compact fiber sensor for simultaneous strain and temperature measurement based on malposition splice cascading single-mode-multimode-single-mode fiber grating

Yin,

Wei,

et al. 2024

Advanced Fiber Laser Conference (AFL2023)

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This paper presents a novel malposition fusion splice cascade single mode, graded index multimode, and single mode fiber (MS-SMS) structure for simultaneous measurement of strain and temperature. The MS-SMS sensor consists of a 4-period single mode fiber graded refractive index multimode fiber splice with a total length of 4.8 mm. Moreover, higher order cladding patterns are excited by malposition fusion splice. The theoretical analysis simulations are in agreement with the experimental results. Experimental validation showed the high strain and temperature sensitivity of the sensor. The sensor has two resonant dips with strain sensitivities of 7.6 pm/με and -8.7 pm/με, respectively. And the sensitivities of the two resonance depressions reached 48 pm/°C and 55.4 pm/°C, respectively.

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Section: Fig 2 Schematic Diagram Of Gimmf Light Field Simulationmentioning

confidence: 99%

Compact fiber sensor for simultaneous strain and temperature measurement based on malposition splice cascading single-mode-multimode-single-mode fiber grating

Yin,

Wei,

et al. 2024

Advanced Fiber Laser Conference (AFL2023)

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“…Similar to the Bragg wavelength for fiber Bragg grating (FBG) [46][47][48] and loss peak for long period grating (LPG) [49,50], the resonant wavelength is a remarkable characterization for AR-HCFs. Accordingly, AR-HCFs can be also regarded as one of the functional fiber sensing devices.…”

Section: Special Device-based Sensing Applicationsmentioning

confidence: 99%

Recent Advancement of Anti-Resonant Hollow-Core Fibers for Sensing Applications

Yang

Luo

et al. 2021

Photonics

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Specialty fibers have enabled a wide range of sensing applications. Particularly, with the recent advancement of anti-resonant effects, specialty fibers with hollow structures offer a unique sensing platform to achieve highly accurate and ultra-compact fiber optic sensors with large measurement ranges. This review presents an overview of recent progress in anti-resonant hollow-core fibers for sensing applications. Both regular and irregular-shaped fibers and their performance in various sensing scenarios are summarized. Finally, the challenges and possible solutions are briefly presented with some perspectives toward the future development of anti-resonant hollow-core fibers for advanced sensing.

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“…In addition, crosssensitivity to temperature is unavoidable in practical applications. Zhang, S. and Huang, J. et al proposed a sensor that simultaneously measures temperature and refractive index to overcome this problem [5][6] . However, this method requires expensive equipment and increases the length of the sensor, thus limiting the application area of the sensor.…”

Section: Introductionmentioning

confidence: 99%

A temperature-insensitive refractive index sensor based on D-type multimode fiber embedded in no-core fiber long-period grating

Zhang

et al. 2023

Ninth Symposium on Novel Photoelectronic Detection Technology and Applications

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A long-period fiber grating based on a D-type multimode fiber (DMF) embedded in a no-core fiber (NCF) has been designed and fabricated. The 5-period NCF-DMF-NCF (NDN-LPG) has a high resonance loss contrast (18dB). The theoretical analysis simulations are in agreement with the experimental results. We investigated the sensing response characteristics of NDN-LPG for refractive index and temperature, and the sensor achieved a wavelength sensitivity of 244.11nm/RIU in the range of 1.344-1.421 RIU with a low temperature sensitivity (22pm/°C).

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Few-mode fiber-embedded long-period fiber grating for simultaneous measurement of refractive index and temperature

Cited by 10 publications

References 21 publications

Compact fiber sensor for simultaneous strain and temperature measurement based on malposition splice cascading single-mode-multimode-single-mode fiber grating

Compact fiber sensor for simultaneous strain and temperature measurement based on malposition splice cascading single-mode-multimode-single-mode fiber grating

Recent Advancement of Anti-Resonant Hollow-Core Fibers for Sensing Applications

A temperature-insensitive refractive index sensor based on D-type multimode fiber embedded in no-core fiber long-period grating

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