Ultra-sensitive chip-based photonic temperature sensor using ring resonator structures.

  title={Ultra-sensitive chip-based photonic temperature sensor using ring resonator structures.},
  author={Haitan Xu and Mohammad Hafezi and J. Fan and J. M. Taylor and Gregory Strouse and Zeeshan Ahmed},
  journal={Optics express},
  volume={22 3},
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… 

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