A Smart Graded-index Multimode Fiber Based Sensor Unit for Multi-parameter Sensing Applications

Fang, Shuo; Li, Baoyong; Song, Dawei; Zhang, Jianzhong; Sun, Weimin; Yuan, Libo

doi:10.4236/opj.2013.32b062

Cited by 10 publications

(4 citation statements)

References 6 publications

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“…Optical fiber opens a new paradigm in biosensing, owing to its smaller footprint, ease of multiplexing, remote monitoring capability, and immunity to electromagnetic interference. A multiparametric fiber-optic probe was realized for simultaneous detection of temperature, curvature and strain [ 140 ]. The sensing probe was made of a Bragg grating structure engraved in a graded-index multimode fiber and a Fizeau cavity.…”

Section: Biosensor Platformsmentioning

confidence: 99%

Towards Multiplexed and Multimodal Biosensor Platforms in Real-Time Monitoring of Metabolic Disorders

Chung

Nguyen

Zhang

et al. 2022

Sensors

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Metabolic syndrome (MS) is a cluster of conditions that increases the probability of heart disease, stroke, and diabetes, and is very common worldwide. While the exact cause of MS has yet to be understood, there is evidence indicating the relationship between MS and the dysregulation of the immune system. The resultant biomarkers that are expressed in the process are gaining relevance in the early detection of related MS. However, sensing only a single analyte has its limitations because one analyte can be involved with various conditions. Thus, for MS, which generally results from the co-existence of multiple complications, a multi-analyte sensing platform is necessary for precise diagnosis. In this review, we summarize various types of biomarkers related to MS and the non-invasively accessible biofluids that are available for sensing. Then two types of widely used sensing platform, the electrochemical and optical, are discussed in terms of multimodal biosensing, figure-of-merit (FOM), sensitivity, and specificity for early diagnosis of MS. This provides a thorough insight into the current status of the available platforms and how the electrochemical and optical modalities can complement each other for a more reliable sensing platform for MS.

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Section: Biosensor Platformsmentioning

confidence: 99%

Towards Multiplexed and Multimodal Biosensor Platforms in Real-Time Monitoring of Metabolic Disorders

Chung

Nguyen

Zhang

et al. 2022

Sensors

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“…A lot of many recently published works demonstrated few-mode operation of these conventional, tilted or slanted FBGs on MMFs and FMFs in vibration, temperature, deformation, displacement, bending etc. fiber optic sensors [11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Twisted Few-Mode Optical Fiber with Improved Height of Quasi-Step Refractive Index Profile

Bourdine¹,

Demidov²,

Kuznetsov³

et al. 2022

Preprint

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This work presents results of property researches of fabricated samples of silica few-mode optical fiber (FMF) with induced chirality under twisting 10 and 66 revolutions per meter, core diameter 11 µm, typical “telecommunication” cladding diameter 125 µm and improved height of quasi-step refractive index profile. Proposed FMF supports 4 guided modes over “C”-band. We represent results of computed characteristics, as well as experimentally measured spectral responses of laser-excited optical signals, including researches and analysis of few-mode effects, occurring after fiber Bragg grating writing.

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“…DOI: 10.21883/PJTF.2023.09. 55325.19523 Многомодовые волоконные световоды (МВС) с градиентным профилем показателя преломления являются актуальным типом волоконных световодов для локальных систем оптической связи [1], систем связи с модовым уплотнением [2] и волоконно-оптических датчиков [3]. Во многих применениях МВС находится или может оказаться в поле ионизирующего излучения (в космическом пространстве, ядерных установках, военной технике), под действием которого в сетке кварцевого стекла возникают радиационные центры окраски (РЦО), поглощающие световой сигнал и создающие тем самым радиационно-наведенные потери (РНП) [4].…”

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Радиационно-Стойкие Градиентные Многомодовые Волоконные Световоды На Основе Фторсиликатного Стекла

Поспелова¹,

Кашайкин²,

Мальцев³

et al. 2023

Письма В Журнал Технической Физики

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Using MCVD-technology, radiation-resistant multimode optical fibers based on fluorosilicate glass with a gradient refractive index profile were developed. Radiation-induced attenuation of light (RIA) in the fibers was compared with the literature data on analoguous fibers manufactured by the PCVD-technoogy. It was found out that RIA in the MCVD-fibers at the wavelength λ=1310 nm under γ-irradiation at doses of up to 10 kGy is 1-2 dB/km (19%-29%) lower than RIA in Super RadHard fiber produced by the PCVD-technology and previously supposed to have record-high radiation resistance.

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A Smart Graded-index Multimode Fiber Based Sensor Unit for Multi-parameter Sensing Applications

Abstract: We demonstrate a smart optical fiber sensor unit to realize a multi-parameter sensing, including temperature, curvature and strain or displacement. The sensor unit is composed of a Bragg grating in graded-index multimode fiber and a Fizeau cavity.

Cited by 10 publications

References 6 publications

Towards Multiplexed and Multimodal Biosensor Platforms in Real-Time Monitoring of Metabolic Disorders

Towards Multiplexed and Multimodal Biosensor Platforms in Real-Time Monitoring of Metabolic Disorders

Twisted Few-Mode Optical Fiber with Improved Height of Quasi-Step Refractive Index Profile

Радиационно-Стойкие Градиентные Многомодовые Волоконные Световоды На Основе Фторсиликатного Стекла

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