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arXiv · 1312.5252

Ultra-Sensitive Chip-Based Photonic Temperature Sensor Using Ring Resonator Structures

Haitan Xu·Mohammad Hafezi·J. Fan·J. M. Taylor·G. F. Strouse·Zeeshan Ahmed
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Abstract

Resistance thermometry provides a time-tested method for taking temperature measurements. However, fundamental limits to resistance-based approaches has produced considerable interest in developing photonic temperature sensors to leverage advances in frequency metrology and to achieve greater mechanical and environmental stability. Here we show that silicon-based optical ring resonator devices can resolve temperature differences of 1 mK using the traditional wavelength scanning methodology. An even lower noise floor of 80 microkelvin for measuring temperature difference is achieved in the side-of-fringe, constant power mode measurement.

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Haitan Xu, Mohammad Hafezi, J. Fan, J. M. Taylor, G. F. Strouse, Zeeshan Ahmed. 2013-12-18. Ultra-Sensitive Chip-Based Photonic Temperature Sensor Using Ring Resonator Structures. https://doi.org/10.1364/oe.22.003098

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