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Thermo-Optical Tuning Cascaded Double Ring Sensor with Large Measurement Range
| Content Provider | MDPI |
|---|---|
| Author | Yang, Zhiping Wang, Yanlu Su, Chang Shao, Liyang He, Jian-Jun Li, Mingyu |
| Copyright Year | 2020 |
| Description | In this paper, a thermo-optic tuning optical waveguide sensor system based on a cascaded double micro-ring resonator is investigated. The system consists of a micro-ring resonator with the microheater as a reference ring and a micro-ring resonator with removing the upper cladding layers as a sensing ring, combined with a microfluidic control. The refractive index change of the sample is measured by the electric power change of the microheater. The experimental results show that the sensitivity of the thermo-optic tuning is 34.231 W/RIU (refractive index units), and the measurement range is 4.325 × 10−3 RIU, almost eight times larger than that of the cascaded double micro-ring resonator without thermo-optic tuning for the intensity interrogation. |
| Starting Page | 5149 |
| e-ISSN | 14248220 |
| DOI | 10.3390/s20185149 |
| Journal | Sensors |
| Issue Number | 18 |
| Volume Number | 20 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-09-09 |
| Access Restriction | Open |
| Subject Keyword | Sensors Telecommunications Optical Waveguide Cascaded Double Micro-ring Resonator Thermo-optical Tuning Intensity Interrogation |
| Content Type | Text |
| Resource Type | Article |
