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Radiation impact on strain transfer efficiency of bonded FBGs 辐射对键合fbg应变传递效率的影响
European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2680301
Chloé Landreau, J. Vidalot, A. Morana, Nicolas Ponthus, Thomas Le Gall, S. Girard, Jacques Charvin, E. Marin
{"title":"Radiation impact on strain transfer efficiency of bonded FBGs","authors":"Chloé Landreau, J. Vidalot, A. Morana, Nicolas Ponthus, Thomas Le Gall, S. Girard, Jacques Charvin, E. Marin","doi":"10.1117/12.2680301","DOIUrl":"https://doi.org/10.1117/12.2680301","url":null,"abstract":"Radiation impact on the strain transfer for a bonded fiber Bragg grating (FBG) has been investigated. The main goal of this preliminary study is to evaluate which adhesive and which fiber are the most appropriate to design a very sensitive strain sensor able to operate in nuclear environment. We performed static and dynamic experiments on different kinds of adhesives and different optical fibers, before and after a 1 MGy(SiO2) X-ray irradiation. The results reveal that the FBG strain sensors can be as much sensitive as classic strain-gauges and that the radiation effects on adhesives can have a positive impact on the strain transfer efficiency.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122500373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Global damage index of aerospace-grade CFRP subcomponents with FBG-based sensors 基于fbg传感器的航空级CFRP子部件整体损伤指数研究
European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678088
S. Goossens, K. Muñoz, M. Jiménez, E. Karachalios, F. Berghmans
{"title":"Global damage index of aerospace-grade CFRP subcomponents with FBG-based sensors","authors":"S. Goossens, K. Muñoz, M. Jiménez, E. Karachalios, F. Berghmans","doi":"10.1117/12.2678088","DOIUrl":"https://doi.org/10.1117/12.2678088","url":null,"abstract":"Current composite structures used in aircraft can suffer from barely visible impact damage (BVID) that can compromise the load-bearing function of these structures. Especially damage-prone regions, such as the feet of a skin-stiffener structure, must therefore be frequently inspected for such damage. This increases aircraft downtimes and associated costs. A permanently installed structural health monitoring (SHM) network based on optical fiber sensors is an ideal candidate for performing condition-based maintenance (CBM) on such a structure. Individual FBG sensors have a known potential to detect the presence of BVIDs. In this work we propose a Global Damage Index (GDI) for quantifying the health of a composite component in manner of seconds, based on a network of 60 FBG sensors. We first establish a damage detection threshold and then carry out temperature compensated BVID detection with the GDI.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"12643 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129094771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simplification of data extraction and measurements from tilted FBG surface plasmon resonance sensors 倾斜光纤光栅表面等离子体共振传感器数据提取和测量的简化
European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2681922
E. Villatoro, J. Albert
{"title":"Simplification of data extraction and measurements from tilted FBG surface plasmon resonance sensors","authors":"E. Villatoro, J. Albert","doi":"10.1117/12.2681922","DOIUrl":"https://doi.org/10.1117/12.2681922","url":null,"abstract":"It is shown here that measurements of a tilted fiber Bragg grating with a single-sided gold coating using an unpolarized light source and no polarization control in the interrogation path can be used instead, thereby considerably facilitating both the fabrication of the grating sensor and simplifying the interrogation system requirements. A 10 degree tilt, 1 cm-long grating with Bragg wavelength near 1610 nm and a single-sided deposition of a 50 nm gold layer results in well-separated TE-HE and TM-EH mode groups with minimum and maximum sensitivity to surrounding refractive index changes, respectively. In these conditions, a well-defined SPR resonance is observed in the transmission spectrum as well as the position of the cladding mode cutoff. The differential sensitivities of mode group resonances in spectrum slice provide clear signatures of surrounding index change, both from surface effects on the gold layer and from cutoff wavelength shifts, thereby providing multi-resonant data and more accurate sensing results.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117185988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Does the refractive index sensitivity matter the most? Charge of biological material and performance of label-free biosensors 折射率灵敏度最重要吗?生物材料的电荷和无标签生物传感器的性能
European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678085
M. Janik, P. Niedziałkowski, K. Lechowicz, M. Koba, P. Sezemský, V. Stranak, M. Śmietana
{"title":"Does the refractive index sensitivity matter the most? Charge of biological material and performance of label-free biosensors","authors":"M. Janik, P. Niedziałkowski, K. Lechowicz, M. Koba, P. Sezemský, V. Stranak, M. Śmietana","doi":"10.1117/12.2678085","DOIUrl":"https://doi.org/10.1117/12.2678085","url":null,"abstract":"The work discusses the possible impact of the electric charge of biological material on the properties of label-free biosensors, in particular those operating in dual domains, i.e., optical and electrochemical. Optical fiber lossy-mode resonance (LMR) sensors based on indium tin oxide (ITO) were investigated as label-free biosensors with a model biological receptor-target pair, i.e., biotin-avidin. Each of the used biological materials shows different properties, i.e., size, isoelectric point, and, therefore, also charge. The investigations were performed in two electrolytes with differently charged redox couples to better identify the possible influence of chargé of biological material on the optical readout. The obtained results clearly indicate that in designing label-free biosensing solutions, consideration of a broader range of biological materials properties than just refractive index, such as their charge, is required.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122719478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multicore fiber sensors for strain measurement towards traffic monitoring 用于应变测量的多芯光纤传感器用于交通监控
European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678405
A. Sanchez-Gonzalez, Javier Pradas, Íñigo Corera, M. Bravo, D. Leandro, R. Dauliat, R. Jamier, P. Roy, R. Pérez-Herrera, M. López-Amo
{"title":"Multicore fiber sensors for strain measurement towards traffic monitoring","authors":"A. Sanchez-Gonzalez, Javier Pradas, Íñigo Corera, M. Bravo, D. Leandro, R. Dauliat, R. Jamier, P. Roy, R. Pérez-Herrera, M. López-Amo","doi":"10.1117/12.2678405","DOIUrl":"https://doi.org/10.1117/12.2678405","url":null,"abstract":"In this work, two new interferometric sensors based on multicore optical fibers for the measurement of strain with the ultimate goal of traffic monitoring are presented. The operating principle of each sensor relied on the monitoring of the phase shift difference accumulated between the supermodes of the structure of the multicore segment in a full round trip. The strain characterization for both sensors resulted in a linear response, with sensitivities of -4.073·10-3 rad/με and - 4.389·10-3 rad/με for the aligned and V-shaped cases respectively, and one-hour instabilities below 4.6·10-3 rad with a 95% confidence level. These results suggest its feasibility in applications requiring high sensitivities over very wide strain ranges, such as heavy-vehicle traffic monitoring. To corroborate the hypothesis, both sensors were integrated into the pavement and their response to the traffic was analyzed.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128333232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The use of range-resolved interferometry for multi-parameter sensing in a wind tunnel 距离分辨干涉测量在风洞多参数传感中的应用
European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2679414
J. Barrington, S. James, T. Kissinger, S. Staines, S. Prince, Erica Alucsa-Saeza, N. Lawson, R. Tatam
{"title":"The use of range-resolved interferometry for multi-parameter sensing in a wind tunnel","authors":"J. Barrington, S. James, T. Kissinger, S. Staines, S. Prince, Erica Alucsa-Saeza, N. Lawson, R. Tatam","doi":"10.1117/12.2679414","DOIUrl":"https://doi.org/10.1117/12.2679414","url":null,"abstract":"The work presented demonstrates that key parameters in aerodynamic structural characterisation of pressure, strain, and structural dynamics, can be all measured via optical fibre sensors interrogated using the principles of range-resolved interferometry (RRI). When used to interrogate sensors simultaneously deployed on a high lift wind in a wind tunnel, the approach yielded resolutions of 31 μPa/ √ Hz and 1 nε/ √ Hz at a bandwidth of 1526 Hz for pressure and strain, respectively, demonstrating the accuracy and versatility of the RRI signal processing technique.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129470939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A facile chemical synthesis route to fabricate gold films coated fiber optic biosensors 一种制备金膜涂层光纤生物传感器的简易化学合成方法
European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2679505
Udiptya Saha, Allwyn S. Rajamani, K. Swain, R. K. Chaudhary, N. Madaboosi, V. Sai, Hariharan Manoharan
{"title":"A facile chemical synthesis route to fabricate gold films coated fiber optic biosensors","authors":"Udiptya Saha, Allwyn S. Rajamani, K. Swain, R. K. Chaudhary, N. Madaboosi, V. Sai, Hariharan Manoharan","doi":"10.1117/12.2679505","DOIUrl":"https://doi.org/10.1117/12.2679505","url":null,"abstract":"This proof-of-concept study demonstrates a seed-mediated growth technique to synthesize gold film on a U-bent fiber optic sensor probe for plasmonic sensing applications. Here, gold seed nanoparticles were physisorbed on the surface of a U-bent silica probe. Later the seed-immobilized probe was incubated in growth solution for gold film growth. The newly fabricated gold film-coated probe exhibited a surface plasmon peak at 655 nm wavelength and sensitivity of 2271 nm/RIU and a figure of merit of 22.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132011259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulation of a temperature-compensated palladium-based fiber optic hydrogen sensor and comparison with measurements 温度补偿型钯基光纤氢传感器的仿真与实测比较
European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678227
F. Buchfellner, Qiang Bian, A. Roehrl, Fan Zhang, Wenbin Hu, Minghong Yang, A. Koch, J. Roths
{"title":"Simulation of a temperature-compensated palladium-based fiber optic hydrogen sensor and comparison with measurements","authors":"F. Buchfellner, Qiang Bian, A. Roehrl, Fan Zhang, Wenbin Hu, Minghong Yang, A. Koch, J. Roths","doi":"10.1117/12.2678227","DOIUrl":"https://doi.org/10.1117/12.2678227","url":null,"abstract":"A temperature-compensated sensor architecture for a fiber optic hydrogen sensor consisting of a partly palladium-coated pi-shifted fiber Bragg grating was modeled and compared with measurements. The transfer matrix formalism was used to calculate the spectral line shape of the pi-shifted FBG with a hydrogen-induced, non-homogeneous strain distribution along the grating axis. The temperature response of the grating itself can be compensated by referencing the notch to the flank wavelength. In addition, the hydrogen solubility in Pd shows a non-linear temperature dependence that was also included in the sensor performance calculations. For the investigated H2 concentration range of 200 ppm to 20000 ppm and between 15 °C and 40 °C, measurement data fit well to the simulation above 3000 ppm but become diffuse below, indicating deviations from the expected dependence according to Sieverts’ square root law.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132061799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical model to optimize the design of plasmonic optical fiber tips towards highly sensitive biosensing 面向高灵敏度生物传感的等离子体光纤尖端优化设计的数值模型
European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678081
M. Vidal, A. Assunção, M. Facão, C. Leitão
{"title":"Numerical model to optimize the design of plasmonic optical fiber tips towards highly sensitive biosensing","authors":"M. Vidal, A. Assunção, M. Facão, C. Leitão","doi":"10.1117/12.2678081","DOIUrl":"https://doi.org/10.1117/12.2678081","url":null,"abstract":"Optical fibers have been explored as sensors for application in different fields, including diagnostics, food security, and environmental monitoring, due to their low size and weight, flexibility and electrical safety. Particularly, optical fiber biosensors based on surface plasmon resonance (SPR) are broadly reported given their rapid, label-free and highly sensitive sensing ability. Among them, plasmonic unclad tips are a cost-effective tool, in which light is reflected by the metal at the fiber end-face, eliciting SPR and doubling the optical path. Tips are recognized for their sensitivity, portability and mechanical strength, being more suitable for in-situ sensing compared to fragile or less compact sensors. In this work, a numerical model was developed to simulate the SPR curve of Au-coated tips (Au-tips) to readily predict their optimized design parameters and therefore enhance their sensitivity. The algorithm determined the reflected power using the three-layer Fresnel equation for p-polarization, with the SPR response being simulated for solutions with different refractive index (RI) surrounding the sensing area. The performance was then assessed by determination of the sensitivity. This way, a relationship was established between the sensor’s performance and its parameters, namely, the ratio between sensing region length and core diameter, numerical aperture and Au thickness. This simple method provided the idealized design parameters for an Au-tip sensor, which might have application for RI monitoring and as a highly sensitive biosensor.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133459590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of non-Lorentzian laser phase noise on Φ-OTDR performance 非洛伦兹激光相位噪声对Φ-OTDR性能的影响
European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678119
C. Dorize, Sterenn Guerrier, É. Awwad, J. Renaudier
{"title":"Impact of non-Lorentzian laser phase noise on Φ-OTDR performance","authors":"C. Dorize, Sterenn Guerrier, É. Awwad, J. Renaudier","doi":"10.1117/12.2678119","DOIUrl":"https://doi.org/10.1117/12.2678119","url":null,"abstract":"We highlight the importance of the laser source phase noise in sensing applications and show that the standard Lorentzian linewidth criterion is not sufficient to characterize the performance of a sensing system. We then derive a laser linewidth related to the phase noise spectral region of interest, according to the length of the fiber to sense. This is illustrated in a setup based on coded interrogation and with two sensing dedicated laser sources.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132378794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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