{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T08:16:34Z","timestamp":1768464994148,"version":"3.49.0"},"reference-count":14,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2017,6,22]],"date-time":"2017-06-22T00:00:00Z","timestamp":1498089600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61575149"],"award-info":[{"award-number":["61575149"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61290311"],"award-info":[{"award-number":["61290311"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Major Project of Hubei Technological Innovation Special Fund","award":["2016AAA008"],"award-info":[{"award-number":["2016AAA008"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A performance optimization design for a high-speed fiber Bragg grating (FBG) interrogation system based on a high-speed distributed feedback (DFB) swept laser is proposed. A time-division-multiplexing sensor network with identical weak FBGs is constituted to realize high-capacity sensing. In order to further improve the multiplexing capacity, a waveform repairing algorithm is designed to extend the dynamic demodulation range of FBG sensors. It is based on the fact that the spectrum of an FBG keeps stable over a long period of time. Compared with the pre-collected spectra, the distorted spectra waveform are identified and repaired. Experimental results show that all the identical weak FBGs are distinguished and demodulated at the speed of 100 kHz with a linearity of above 0.99, and the range of dynamic demodulation is extended by 40%.<\/jats:p>","DOI":"10.3390\/s17071472","type":"journal-article","created":{"date-parts":[[2017,6,22]],"date-time":"2017-06-22T10:11:35Z","timestamp":1498126295000},"page":"1472","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Performance Optimization Design for a High-Speed Weak FBG Interrogation System Based on DFB Laser"],"prefix":"10.3390","volume":"17","author":[{"given":"Yiqiang","family":"Yao","sequence":"first","affiliation":[{"name":"National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4600-2795","authenticated-orcid":false,"given":"Zhengying","family":"Li","sequence":"additional","affiliation":[{"name":"National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China"},{"name":"Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Yiming","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Siqi","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Yutang","family":"Dai","sequence":"additional","affiliation":[{"name":"National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Jianmin","family":"Gong","sequence":"additional","affiliation":[{"name":"Department of Optical Access Network, Huawei Technologies USA, Santa Clara, CA 95050, USA"}]},{"given":"Lixin","family":"Wang","sequence":"additional","affiliation":[{"name":"National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China"}]}],"member":"1968","published-online":{"date-parts":[[2017,6,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1088\/0957-0233\/8\/4\/002","article-title":"In-fibre Bragg grating sensors","volume":"8","author":"Rao","year":"1997","journal-title":"Meas. Sci. Technol."},{"key":"ref_2","first-page":"679","article-title":"Research of High-Speed FBG Demodulation System for Distributed Dynamic Monitoring of Mechanical Equipment","volume":"7","author":"Li","year":"2013","journal-title":"Adv. Mech. Eng."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"19992","DOI":"10.3390\/s150819992","article-title":"Damage Detection Based on Static Strain Responses Using FBG in a Wind Turbine Blade","volume":"15","author":"Tian","year":"2015","journal-title":"Sensors"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"015305","DOI":"10.1088\/0957-0233\/21\/1\/015305","article-title":"Wavelet analysis on vibration modal frequency measurement at a low level of strain of the turbine blade using FBG sensors","volume":"21","author":"Huang","year":"2009","journal-title":"Meas. Sci. Technol."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1109\/JSEN.2005.845198","article-title":"Tilt sensor with FBG technology and matched FBG demodulating method","volume":"6","author":"Peng","year":"2006","journal-title":"IEEE. Sens. J."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"832","DOI":"10.1109\/JPHOT.2012.2198805","article-title":"FBG-based matched filters for optical processing of RF signals","volume":"4","author":"Dastmalchi","year":"2012","journal-title":"IEEE. Photonics J."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"3687","DOI":"10.3390\/s110403687","article-title":"Fiber Optic Sensors for Structural Health Monitoring of Air Platforms","volume":"11","author":"Guo","year":"2011","journal-title":"Sensors"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1561","DOI":"10.1016\/j.optcom.2010.11.072","article-title":"Addressing fiber Bragg grating sensors with wavelength-swept pulse fiber laser and analog electrical switch","volume":"284","author":"Li","year":"2011","journal-title":"Opt. Commun."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"16552","DOI":"10.1364\/OE.16.016552","article-title":"Characterization of FBG sensor interrogation based on a FDML wavelength swept laser","volume":"16","author":"Jung","year":"2008","journal-title":"Opt. Express."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"94008","DOI":"10.1088\/0957-0233\/21\/9\/094008","article-title":"Dynamic and static strain fiber Bragg grating sensor interrogation with a 1.3 \u00b5m Fourier domain mode-locked wavelength-swept laser","volume":"21","author":"Lee","year":"2010","journal-title":"Meas. Sci. Technol."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"234207","DOI":"10.7498\/aps.64.234207","article-title":"A demodulation method of high-speed fiber Bragg grating based on dispersion-compensating fiber","volume":"64","author":"Li","year":"2015","journal-title":"Acta Phys. Sin."},{"key":"ref_12","first-page":"1473","article-title":"A high-speed FBG interrogation system based on DFB laser","volume":"26","author":"Liu","year":"2015","journal-title":"J. Optoelectron. Laser"},{"key":"ref_13","unstructured":"Lee, H.W., and Song, M. (2005, January 22\u201328). FBG interrogation with a scanning Fabry-Perot filter and Gaussian line-fitting algorithm. Proceedings of the 18th Annual Meeting of the IEEE Lasers and Electro-Optics Society, Sydney, Australia."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"311","DOI":"10.1016\/j.sna.2015.10.018","article-title":"Optimization design for medium-high frequency FBG accelerometer with different eigenfrequency and sensitivity","volume":"235","author":"Yin","year":"2015","journal-title":"Sens. Actuators A Phys."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/17\/7\/1472\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T18:39:57Z","timestamp":1760207997000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/17\/7\/1472"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,6,22]]},"references-count":14,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2017,7]]}},"alternative-id":["s17071472"],"URL":"https:\/\/doi.org\/10.3390\/s17071472","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,6,22]]}}}