On-Chip Silicon Waveguide Bragg Grating Photonic Temperature Sensor
| Autor: | Sunil Mittal, Nikolai N. Klimov, Zeeshan Ahmed, Michaela Berger |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Range (particle radiation)
Materials science Silicon business.industry FOS: Physical sciences chemistry.chemical_element Waveguide (optics) Temperature measurement Atomic and Molecular Physics and Optics Optics Fiber Bragg grating chemistry Thermometer Photonics business Refractive index Optics (physics.optics) Physics - Optics |
| Popis: | Resistance thermometry is a time-tested method for taking temperature measurements. In recent years fundamental limits to resistance-based approaches spurred considerable interest in developing photonic temperature sensors as a viable alternative. In this study we demonstrate that our photonic thermometer, which consists of a silicon waveguide integrated with a Bragg grating, can be used to measure temperature changes over the range from 5 C to 160 C with a combined expanded uncertainty [k = 2 ; 95% confidence level] of 1.25 degree C. The computational modeling of the sensor predicts the resonance wavelength and effective refractive index within 4% of the measured value. |
| Databáze: | OpenAIRE |
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