Abstract
A reflector-less refractive index fiber sensor, exploiting the high-scattering of a MgO nanoparticle (NP) fiber, is proposed. The sensor is obtained by etching the fiber to expose the core to the surrounding analyte, and the backscattering signal is read by an Optical Backscatter Reflectometer (OBR). This approach permits distributed sensing, offered by OBR detection, and permits spatial-multiplexing of parallel sensors, thanks to the scattering-level multiplexing (SLMux) of the NP-doped fiber. Simultaneous physical properties detection is also possible. Experiments, performed to detect refractive index and temperature, showed a sensitivity of roughly 0.6 nm/RIU, with a simultaneous measurement of 100°C of temperature.
Original language | English |
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Title of host publication | Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX |
Editors | Israel Gannot, Israel Gannot |
Publisher | SPIE |
ISBN (Electronic) | 9781510632295 |
DOIs | |
Publication status | Published - Jan 1 2020 |
Event | Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX 2020 - San Francisco, United States Duration: Feb 1 2020 → Feb 2 2020 |
Publication series
Name | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
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Volume | 11233 |
ISSN (Print) | 1605-7422 |
Conference
Conference | Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX 2020 |
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Country | United States |
City | San Francisco |
Period | 2/1/20 → 2/2/20 |
Keywords
- High-scatter fiber
- MgO nanoparticle doped optical fiber sensors
- Optical backscatter reflectometry
- Refractive index
- Spatial multiplexing
- Sucrose
- Temperature
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Biomaterials
- Atomic and Molecular Physics, and Optics
- Radiology Nuclear Medicine and imaging