{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,19]],"date-time":"2025-12-19T10:02:05Z","timestamp":1766138525967,"version":"build-2065373602"},"reference-count":26,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2023,12,28]],"date-time":"2023-12-28T00:00:00Z","timestamp":1703721600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ningbo Science and Technology Project","award":["2021Z030","2022C03084"],"award-info":[{"award-number":["2021Z030","2022C03084"]}]},{"name":"\u201cPioneer\u201d and \u201cLeading Goose\u201d R&amp;D Program of Zhejiang","award":["2021Z030","2022C03084"],"award-info":[{"award-number":["2021Z030","2022C03084"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A high-sensitivity curvature sensor with dual-parameter measurement ability based on angularly cascaded long-period fiber grating (AC-LPFG) is proposed and experimentally demonstrated, which consists of two titled LPFGs (TLPFGs) with different tilt angles and the same grating period. AC-LPFG was fabricated by using a deep ultraviolet laser and an amplitude-mask in our laboratory. The experimental results show that simultaneous measurement of curvature and temperature can be achieved by monitoring the wavelengths of two resonant peaks for different TLPFGs. The two peaks show opposite shifts with increasing curvature and has a maximum curvature sensitivity of 16.392 nm\/m\u22121. With the advantages of low cost, high sensitivity, and dual-parameter measurements, our sensor has more potential for engineering applications.<\/jats:p>","DOI":"10.3390\/s24010184","type":"journal-article","created":{"date-parts":[[2023,12,28]],"date-time":"2023-12-28T09:35:21Z","timestamp":1703756121000},"page":"184","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Angularly Cascaded Long-Period Fiber Grating for Curvature and Temperature Detection"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-4172-9299","authenticated-orcid":false,"given":"Anping","family":"Xiao","sequence":"first","affiliation":[{"name":"Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Geng Wen Road, Hangzhou 311231, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jie","family":"Du","sequence":"additional","affiliation":[{"name":"Laboratory of Photo-Electric Functional Films, College of Science, University of Shanghai for Science and Technology, 516 Jun Gong Road, Shanghai 200093, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9500-552X","authenticated-orcid":false,"given":"Qiang","family":"Ling","sequence":"additional","affiliation":[{"name":"Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Geng Wen Road, Hangzhou 311231, China"},{"name":"Futong Group Co., Ltd., Hangzhou 311499, China"},{"name":"College of Science, Zhejiang University of Technology, Hangzhou 310023, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yao","family":"Chen","sequence":"additional","affiliation":[{"name":"Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Geng Wen Road, Hangzhou 311231, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhengtian","family":"Gu","sequence":"additional","affiliation":[{"name":"Laboratory of Photo-Electric Functional Films, College of Science, University of Shanghai for Science and Technology, 516 Jun Gong Road, Shanghai 200093, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haiyun","family":"Chen","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optical Information Detection and Display Technology of Zhejiang, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhangwei","family":"Yu","sequence":"additional","affiliation":[{"name":"Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Geng Wen Road, Hangzhou 311231, China"},{"name":"Key Laboratory of Optical Information Detection and Display Technology of Zhejiang, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1406-2643","authenticated-orcid":false,"given":"Barerem-Melgueba","family":"Mao","sequence":"additional","affiliation":[{"name":"Centre Informatique et de Calcul, Universite de Lome, Lome BP 1515, Togo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zuguang","family":"Guan","sequence":"additional","affiliation":[{"name":"Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Geng Wen Road, Hangzhou 311231, China"},{"name":"Key Laboratory of Optical Information Detection and Display Technology of Zhejiang, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daru","family":"Chen","sequence":"additional","affiliation":[{"name":"Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Geng Wen Road, Hangzhou 311231, China"},{"name":"Key Laboratory of Optical Information Detection and Display Technology of Zhejiang, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,12,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"114463","DOI":"10.1016\/j.sna.2023.114463","article-title":"Real-time monitoring and decoupling of multi parameters in vascular intervention using a cascaded LPFG-FBG sensor","volume":"359","author":"Zhang","year":"2023","journal-title":"Sens. Actuators A Phys."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"6910","DOI":"10.1109\/JSEN.2023.3246079","article-title":"Strain-Insensitive Simultaneous Measurements of Torsion and Temperature Using Long-Period Fiber Grating Inscribed on Twisted Double-Clad Fiber","volume":"23","author":"Saputro","year":"2023","journal-title":"IEEE Sens. J."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"14109","DOI":"10.1109\/JSEN.2022.3181358","article-title":"High-Sensitivity Magnetic Field Sensor Based on Long-Period Grating Near the Dispersion Turning Point","volume":"22","author":"Lu","year":"2022","journal-title":"IEEE Sens. J."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"6590","DOI":"10.1364\/OE.482236","article-title":"Detection of copper ions in an aqueous solution by a dual-peak long period fiber grating functionalized with a polypyrrole-chitosan composite","volume":"31","author":"Li","year":"2023","journal-title":"Opt. Express"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"109353","DOI":"10.1016\/j.optlastec.2023.109353","article-title":"A dual-parameter sensing system for temperature and curvature based on Nano-EYDF and in-line cascaded Mach-Zehnder interferometer","volume":"163","author":"Fu","year":"2023","journal-title":"Opt. Laser Technol."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"108154","DOI":"10.1016\/j.optlastec.2022.108154","article-title":"Curvature sensor based on femtosecond laser-inscribed straight waveguide in FMF","volume":"152","author":"Zhao","year":"2022","journal-title":"Opt. Laser Technol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"128989","DOI":"10.1016\/j.optcom.2022.128989","article-title":"Seven-core fiber based in-fiber Mach\u2013Zehnder interferometer for temperature-immune curvature sensing","volume":"528","author":"Shao","year":"2023","journal-title":"Opt. Commun."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"3981","DOI":"10.1109\/JLT.2021.3053392","article-title":"Compact Fiber Curvature and Temperature Sensor Inscribed by Femtosecond Laser Through the Coating","volume":"39","author":"Rong","year":"2021","journal-title":"J. Light. Technol."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2230","DOI":"10.1364\/OE.445396","article-title":"Two-dimensional vector bending sensor based on Fabry-Perot cavities in a multicore fiber","volume":"30","author":"Oliveira","year":"2022","journal-title":"Opt. Express"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"3569","DOI":"10.1109\/JLT.2012.2222865","article-title":"Curvature and Temperature Discrimination Using Multimode Interference Fiber Optic Structures\u2014A Proof of Concept","volume":"30","author":"Silva","year":"2012","journal-title":"J. Light. Technol."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"17915","DOI":"10.1364\/OE.425580","article-title":"Simultaneous measurement of temperature and curvature using ring-core fiber-based Mach-Zehnder interferometer","volume":"29","author":"Yuan","year":"2021","journal-title":"Opt. Express"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"2598","DOI":"10.1364\/AO.450660","article-title":"Ring core few-mode fiber sensor for curvature measurement","volume":"61","author":"Zhang","year":"2022","journal-title":"Appl. Opt."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"108540","DOI":"10.1016\/j.optlastec.2022.108540","article-title":"Simultaneous measurement of strain, curvature, and temperature using a hollow square core fiber","volume":"156","author":"Pereira","year":"2022","journal-title":"Opt. Laser Technol."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"113927","DOI":"10.1016\/j.sna.2022.113927","article-title":"A single-mode-deformed multimode-single-mode fiber structure for simultaneous measurement of curvature and temperature","volume":"347","author":"Zhao","year":"2022","journal-title":"Sens. Actuators A Phys."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"24114","DOI":"10.1364\/OE.26.024114","article-title":"Residual-stress-induced helical long period fiber gratings for sensing applications","volume":"26","author":"Li","year":"2018","journal-title":"Opt. Express"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"060604","DOI":"10.3788\/COL202321.060604","article-title":"Vector bending sensor based on chirped long-period grating with off-axis micro-helix taper","volume":"21","author":"Zhou","year":"2023","journal-title":"Chin. Opt. Lett."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"055801","DOI":"10.1088\/2040-8986\/ac5b4e","article-title":"Arc-remodified long period fiber grating for monitoring absolute bending condition","volume":"24","author":"Lu","year":"2022","journal-title":"J. Opt."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"23968","DOI":"10.1109\/JSEN.2022.3220255","article-title":"Highly Sensitive Bending Sensor Based on C-Shaped-Core Long-Period Fiber Gratings","volume":"22","author":"Li","year":"2022","journal-title":"IEEE Sens. J."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1063","DOI":"10.1109\/JLT.2017.2764951","article-title":"Long Period Gratings in Multicore Optical Fibers for Directional Curvature Sensor Implementation","volume":"36","author":"Barrera","year":"2018","journal-title":"J. Light. Technol."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"68","DOI":"10.1016\/j.optlastec.2015.02.010","article-title":"Femtosecond laser fabrication of long period fiber gratings by a transversal-scanning inscription method and the research of its orientational bending characteristics","volume":"71","author":"Dong","year":"2015","journal-title":"Opt. Laser Technol."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"1041","DOI":"10.1364\/OSAC.403436","article-title":"Theoretical analysis of dual-mode long period fiber grating sensor based on dual-peak resonance for dual-parameter measurement","volume":"4","author":"Ling","year":"2021","journal-title":"OSA Contin."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"108218","DOI":"10.1016\/j.optlastec.2022.108218","article-title":"High-sensitivity two-axis vector bending sensor based on side-grooved long period grating in eccentric core fiber","volume":"153","author":"Xu","year":"2022","journal-title":"Opt. Laser Technol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"234","DOI":"10.1016\/j.mechatronics.2017.10.005","article-title":"Bending angle prediction and control of soft pneumatic actuators with embedded flex sensors\u2014A data-driven approach","volume":"50","author":"Elgeneidy","year":"2018","journal-title":"Mechatronics"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"2200337","DOI":"10.1002\/aisy.202200337","article-title":"Digitizing Human Motion via Bending Sensors toward Humanoid Robot","volume":"5","author":"Liu","year":"2023","journal-title":"Adv. Intell. Syst."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1467","DOI":"10.1007\/s42765-023-00285-5","article-title":"High-Accuracy 3D Shape Sensor Based on Anti-Twist Packaged High Uniform Multicore Fiber FBGs","volume":"5","author":"Meng","year":"2023","journal-title":"Adv. Fiber Mater."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"28017","DOI":"10.1109\/JSEN.2021.3121430","article-title":"Knee Joint Curvature Detection System Based on Fiber Optic Mach-Zendler Interferometric Curvature Sensor","volume":"21","author":"Ding","year":"2021","journal-title":"IEEE Sens. 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