{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T23:25:14Z","timestamp":1775863514993,"version":"3.50.1"},"reference-count":31,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2018,8,9]],"date-time":"2018-08-09T00:00:00Z","timestamp":1533772800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation","award":["No. 61705025,61307104,61405044"],"award-info":[{"award-number":["No. 61705025,61307104,61405044"]}]},{"DOI":"10.13039\/501100013084","name":"Program for Innovation Team Building at Institutions of Higher Education in Chongqing","doi-asserted-by":"publisher","award":["CXTDX201601034"],"award-info":[{"award-number":["CXTDX201601034"]}],"id":[{"id":"10.13039\/501100013084","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100019085","name":"Chongqing Municipal Key Laboratory of Institutions of Higher Education","doi-asserted-by":"publisher","award":["Grant No. [2017]3"],"award-info":[{"award-number":["Grant No. [2017]3"]}],"id":[{"id":"10.13039\/501100019085","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Program of Chongqing Development and Reform Commission","award":["Grant No. 2017[1007]"],"award-info":[{"award-number":["Grant No. 2017[1007]"]}]},{"name":"Science and Technology Project Affiliated to the Education Department of Chongqing Municipality","award":["No. KJ1710238,KJ1710247,KJ1725391"],"award-info":[{"award-number":["No. KJ1710238,KJ1710247,KJ1725391"]}]},{"name":"Fundamental Research Funds for Chongqing Three Gorges University of China","award":["No.16PY13,16QN16"],"award-info":[{"award-number":["No.16PY13,16QN16"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Curvature measurement plays an important role in many fields. Aiming to overcome shortcomings of the existing optical fiber curvature sensors, such as complicated structure and difficulty in eliminating temperature noise, we proposed and demonstrated a simple optical fiber curvature sensor based on surface plasmon resonance. By etching cladding of the step-index multimode fiber and plating gold film on the bare core, the typical Kretschmann configuration is implemented on fiber, which is used as the bending-sensitive region. With increases in the curvature of the optical fiber, the resonance wavelength of the SPR (Surface Plasmon Resonance) dip linear red-shifts while the transmittance decreases linearly. In the curvature range between 0 and 9.17 m\u22121, the wavelength sensitivity reached 1.50 nm\/m\u22121 and the intensity sensitivity reached \u22123.66%\/m\u22121. In addition, with increases in the ambient temperature, the resonance wavelength of the SPR dips linearly blueshifts while the transmittance increases linearly. In the temperature range between 20 and 60 \u00b0C, the wavelength sensitivity is \u22120.255 nm\/\u00b0C and the intensity sensitivity is 0.099%\/\u00b0C. The sensing matrix is built up by combining the aforementioned four sensitivities. By means of the dual modulation method, the cross-interference caused by temperature change is eliminated. Additionally, simultaneous measurement of curvature and temperature is realized.<\/jats:p>","DOI":"10.3390\/s18082608","type":"journal-article","created":{"date-parts":[[2018,8,9]],"date-time":"2018-08-09T10:36:31Z","timestamp":1533810991000},"page":"2608","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":39,"title":["Surface-Plasmon-Resonance-Based Optical Fiber Curvature Sensor with Temperature Compensation by Means of Dual Modulation Method"],"prefix":"10.3390","volume":"18","author":[{"given":"Yudong","family":"Su","sequence":"first","affiliation":[{"name":"Chongqing Municipal Key Laboratory of Intelligent Information Processing and Control of Institutions of Higher Education, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"},{"name":"College of Electronic &amp; Information Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yong","family":"Wei","sequence":"additional","affiliation":[{"name":"Chongqing Municipal Key Laboratory of Intelligent Information Processing and Control of Institutions of Higher Education, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"},{"name":"College of Electronic &amp; Information Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yonghui","family":"Zhang","sequence":"additional","affiliation":[{"name":"Basic Medicine Department, Chongqing Three Gorges Medical College, Wanzhou, Chongqing 404100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chunlan","family":"Liu","sequence":"additional","affiliation":[{"name":"Chongqing Engineering Research Center of Internet of Things and Intelligent Control Technology, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiangfei","family":"Nie","sequence":"additional","affiliation":[{"name":"College of Electronic &amp; Information Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3997-4342","authenticated-orcid":false,"given":"Zongda","family":"Zhu","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lu","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Physics, Harbin Institute of Technology, Harbin 150001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,8,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"126","DOI":"10.1016\/j.sna.2016.10.013","article-title":"Design and experiment of an optical fiber micro bend sensor for respiration monitoring","volume":"251","author":"Hu","year":"2016","journal-title":"Sens. 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