Whispering-Gallery Mode Micro-Ring Resonator Integrated with a Single-Core Fiber Tip for Refractive Index Sensing
A micro-ring resonator structure was fabricated via the two-photon polymerization technique directly on a single-mode fiber tip and tested for refractive index sensing application. The micro-ring structure was used to excite whispering-gallery modes, and observations of the changes in the resonance...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/23/9424 |
| _version_ | 1797399569809539072 |
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| author | Monika Halendy Sławomir Ertman |
| author_facet | Monika Halendy Sławomir Ertman |
| author_sort | Monika Halendy |
| collection | DOAJ |
| description | A micro-ring resonator structure was fabricated via the two-photon polymerization technique directly on a single-mode fiber tip and tested for refractive index sensing application. The micro-ring structure was used to excite whispering-gallery modes, and observations of the changes in the resonance spectrum introduced by changes in the refractive index of the environment served as the sensing principle. The proposed structure has the advantages of a very simple design, allowing for measurements in reflection mode, relatively easy and fast fabrication and integration with a single tip of a standard single-mode fiber, which allowed for quick and convenient measurements in the optical setup. The performance of the structure was characterized, and the resonant spectrum giving high potential for refractive index sensing was measured. Future perspectives of the research are addressed. |
| first_indexed | 2024-03-09T01:43:04Z |
| format | Article |
| id | doaj.art-78e8a5288ae54edc82ef595963e12eb8 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T01:43:04Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-78e8a5288ae54edc82ef595963e12eb82023-12-08T15:25:56ZengMDPI AGSensors1424-82202023-11-012323942410.3390/s23239424Whispering-Gallery Mode Micro-Ring Resonator Integrated with a Single-Core Fiber Tip for Refractive Index SensingMonika Halendy0Sławomir Ertman1Faculty of Physics, Warsaw University of Technology, 00-662 Warszawa, PolandFaculty of Physics, Warsaw University of Technology, 00-662 Warszawa, PolandA micro-ring resonator structure was fabricated via the two-photon polymerization technique directly on a single-mode fiber tip and tested for refractive index sensing application. The micro-ring structure was used to excite whispering-gallery modes, and observations of the changes in the resonance spectrum introduced by changes in the refractive index of the environment served as the sensing principle. The proposed structure has the advantages of a very simple design, allowing for measurements in reflection mode, relatively easy and fast fabrication and integration with a single tip of a standard single-mode fiber, which allowed for quick and convenient measurements in the optical setup. The performance of the structure was characterized, and the resonant spectrum giving high potential for refractive index sensing was measured. Future perspectives of the research are addressed.https://www.mdpi.com/1424-8220/23/23/9424sensorrefractive indexwhispering-gallery mode (WGM)micro-ring resonatoroptical fibertwo-photon polymerization (2PP) |
| spellingShingle | Monika Halendy Sławomir Ertman Whispering-Gallery Mode Micro-Ring Resonator Integrated with a Single-Core Fiber Tip for Refractive Index Sensing Sensors sensor refractive index whispering-gallery mode (WGM) micro-ring resonator optical fiber two-photon polymerization (2PP) |
| title | Whispering-Gallery Mode Micro-Ring Resonator Integrated with a Single-Core Fiber Tip for Refractive Index Sensing |
| title_full | Whispering-Gallery Mode Micro-Ring Resonator Integrated with a Single-Core Fiber Tip for Refractive Index Sensing |
| title_fullStr | Whispering-Gallery Mode Micro-Ring Resonator Integrated with a Single-Core Fiber Tip for Refractive Index Sensing |
| title_full_unstemmed | Whispering-Gallery Mode Micro-Ring Resonator Integrated with a Single-Core Fiber Tip for Refractive Index Sensing |
| title_short | Whispering-Gallery Mode Micro-Ring Resonator Integrated with a Single-Core Fiber Tip for Refractive Index Sensing |
| title_sort | whispering gallery mode micro ring resonator integrated with a single core fiber tip for refractive index sensing |
| topic | sensor refractive index whispering-gallery mode (WGM) micro-ring resonator optical fiber two-photon polymerization (2PP) |
| url | https://www.mdpi.com/1424-8220/23/23/9424 |
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