FIBER OPTIC REFRACTIVE INDEX SENSORS BASED ON A BALL RESONATOR AND OPTICAL BACKSCATTER INTERROGATION
| dc.contributor.author | Shaimerdenova, Madina | |
| dc.contributor.author | Ayupova, Takhmina | |
| dc.contributor.author | Sypabekova, Marzhan | |
| dc.contributor.author | Tosi, Daniele | |
| dc.date.accessioned | 2021-02-17T11:10:30Z | |
| dc.date.available | 2021-02-17T11:10:30Z | |
| dc.date.issued | 2020-10-30 | |
| dc.description.abstract | In this work, we introduced fabrication and interrogation of simple and highly sensitive fiber-optic refractive index (RI) sensors based on ball resonators built on the tip of single-mode fibers. The probes have been fabricated through a CO2 fiber splicer, with a fast (~600 s) and repeatable method. The ball resonator acted as a weak interferometer with a return loss below −50 dB and was interrogated with an optical backscatter reflectometer measuring the reflection spectrum. The ball resonators behaved as weak interferometers with a shallow fringe and a spectrum that appeared close to a random signal, and RI sensitivity could be measured either through wavelength shift or amplitude change. In this work, we reported four samples having sensitivity ranges 48.9–403.3 nm/RIU and 256.0–566.2 dB/RIU (RIU = refractive index unit). Ball resonators appeared as a sensitive and robust platform for RI sensing in liquid and can be further functionalized for biosensing. View Full-Text Keywords: optical fiber sensors; optical resonators; refractive index sensors; optical backscatter reflectometry; ball resonator | en_US |
| dc.identifier.citation | Shaimerdenova, M., Ayupova, T., Sypabekova, M., & Tosi, D. (2020). Fiber Optic Refractive Index Sensors Based on a Ball Resonator and Optical Backscatter Interrogation. Sensors, 20(21), 6199. https://doi.org/10.3390/s20216199 | en_US |
| dc.identifier.issn | 1424-8220 | |
| dc.identifier.uri | https://www.mdpi.com/1424-8220/20/21/6199 | |
| dc.identifier.uri | https://doi.org/10.3390/s20216199 | |
| dc.identifier.uri | http://nur.nu.edu.kz/handle/123456789/5312 | |
| dc.language.iso | en | en_US |
| dc.publisher | MDPI | en_US |
| dc.relation.ispartofseries | Sensors;20(21), 6199 | |
| dc.rights | Attribution-NonCommercial-ShareAlike 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/us/ | * |
| dc.subject | optical fiber sensors | en_US |
| dc.subject | optical resonators | en_US |
| dc.subject | refractive index sensors | en_US |
| dc.subject | optical backscatter reflectometry | en_US |
| dc.subject | ball resonator | en_US |
| dc.subject | Research Subject Categories::TECHNOLOGY | en_US |
| dc.title | FIBER OPTIC REFRACTIVE INDEX SENSORS BASED ON A BALL RESONATOR AND OPTICAL BACKSCATTER INTERROGATION | en_US |
| dc.type | Article | en_US |
| workflow.import.source | science |