{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T00:22:38Z","timestamp":1760228558163,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2022,5,16]],"date-time":"2022-05-16T00:00:00Z","timestamp":1652659200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Research Initiation Project of Zhejiang Lab","award":["No. 113012-PI2201"],"award-info":[{"award-number":["No. 113012-PI2201"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this article, a new concept of microwave photonic (MWP) fiber ring resonator is introduced. In particular, the complex transmission spectra of the resonator in the microwave domain, including magnitude and phase spectra, are measured and characterized. Multiple resonance peaks are obtained in the magnitude spectrum; rapid variations in phase near resonance (i.e., enhanced group delay) are observed in the phase spectrum. We also experimentally demonstrate that the MWP fiber ring resonator can be potentially employed as a novel optical fiber sensor for macro-bending and fiber length change sensing (strain sensing). The experimental results are in good agreement with theoretical predictions.<\/jats:p>","DOI":"10.3390\/s22103771","type":"journal-article","created":{"date-parts":[[2022,5,16]],"date-time":"2022-05-16T21:36:06Z","timestamp":1652736966000},"page":"3771","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Microwave Photonic Fiber Ring Resonator"],"prefix":"10.3390","volume":"22","author":[{"given":"Chen","family":"Zhu","sequence":"first","affiliation":[{"name":"Research Center for Optical Fiber Sensing, Zhejiang Laboratory, Hangzhou 311100, China"}]},{"given":"Yiyang","family":"Zhuang","sequence":"additional","affiliation":[{"name":"Research Center for Optical Fiber Sensing, Zhejiang Laboratory, Hangzhou 311100, China"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1007\/s00216-010-4237-z","article-title":"Optical ring resonators for biochemical and chemical sensing","volume":"399","author":"Sun","year":"2011","journal-title":"Anal. 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