Ultra-sensitive Chip-based Photonic Temperature Sensor Using Ring Resonator Structures
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 K for measuring temperature difference is achieved in the side-of-fringe, constant power mode measurement.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 10, 2014
- Accession Number
- ADA622561
Entities
People
- G. F. Strouse
- Haitan Xu
- J M Taylor
- Jialu Fan
- Mohammad Hafezi
- Zeeshan Ahmed
Organizations
- University of Copenhagen