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Fabrication and Testing of Photonic Thermometers

Fabrication and Testing of Photonic Thermometers

Published on: October 24, 2018

Physics-based Models for photonic thermometers.

Zeeshan Ahmed¹

¹National Institute of Standards and Technology, Physical Measurement Laboratory, Sensor Science Division, 100 Bureau Drive, Gaithersburg, 20899, MD, USA.

Sensors and Actuators. A, Physical

|May 8, 2023

Summary

This summary is machine-generated.

Photonic temperature sensors offer advantages over resistance thermometry. This study develops physics-based models for silicon ring resonators and Fiber Bragg gratings, enabling standardized photonic thermometer reference functions.

Keywords:

0000 1111 Bayesian model evaluation Fiber Bragg gratings Photonic thermometry bandgap models ring resonator

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Area of Science:

Photonics
Thermodynamics
Materials Science

Background:

Resistance thermometry is a mature technology with inherent limitations.
Growing demand for cost-effective, stable, and advanced temperature sensing drives interest in photonic solutions.
Emerging economies require innovative sensing technologies.

Purpose of the Study:

To develop physics-based models for photonic temperature sensors.
To establish a framework for temperature-wavelength relationships in silicon ring resonators and Fiber Bragg gratings.
To pave the way for standardized photonic thermometer reference functions.

Main Methods:

Utilized Della-Corte-Varshni treatment for thermo-optic coefficients.
Derived models for temperature-wavelength relationships in silicon ring resonators and Fiber Bragg gratings.
Employed Bayesian criteria for model evaluation, prioritizing predictive accuracy and simplicity.

Main Results:

Developed physics-based models for photonic temperature sensing.
Established constraints on model complexity and parameter bounds for photonic thermometry.
Demonstrated a framework for accurate temperature-wavelength relationships.

Conclusions:

The developed framework supports the standardization and inter-comparison of photonic thermometers.
This work offers a pathway to reliable and accurate photonic temperature measurement.
Physics-based modeling enhances the utility of silicon ring resonators and Fiber Bragg gratings for thermometry.