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Dual electro-optic frequency comb photonic thermometry

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Metadata Last Checked: August 02, 2025 | Last Modified: 2023-03-21 00:00:00
Data from peer-reviewed publication: A. J. Fleisher et al., Dual electro-optic frequency comb photonic thermometry, Optics Letters. We report a precision realization of photonic thermometry using dual-comb spectroscopy to interrogate a ?-phase-shifted fiber Bragg grating. We achieve read-out stability of 7.5 mK at 1 s and resolve temperature changes of similar magnitude?sufficient for most industrial applications. Our dual-comb approach enables rapid sensing of dynamic temperature, and our scalable and reconfigurable electro-optic generation scheme enables a broad sensing range without laser tuning. Reproducibility on the International Temperature Scale of 1990 is tested, and ultimately limited by the frequency reference and check-thermometer stability. Our demonstration opens the door for a universal interrogator deployable to multiple photonic devices in parallel to potentially unravel complex multi-physical quantity measurements.

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Complete Metadata
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accessLevel public
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                                            [
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contactPoint 
                                            {
  "fn": "Adam Fleisher",
  "hasEmail": "mailto:adam.fleisher@nist.gov"
}
description Data from peer-reviewed publication: A. J. Fleisher et al., Dual electro-optic frequency comb photonic thermometry, Optics Letters. We report a precision realization of photonic thermometry using dual-comb spectroscopy to interrogate a ?-phase-shifted fiber Bragg grating. We achieve read-out stability of 7.5 mK at 1 s and resolve temperature changes of similar magnitude?sufficient for most industrial applications. Our dual-comb approach enables rapid sensing of dynamic temperature, and our scalable and reconfigurable electro-optic generation scheme enables a broad sensing range without laser tuning. Reproducibility on the International Temperature Scale of 1990 is tested, and ultimately limited by the frequency reference and check-thermometer stability. Our demonstration opens the door for a universal interrogator deployable to multiple photonic devices in parallel to potentially unravel complex multi-physical quantity measurements.
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identifier ark:/88434/mds2-2966
issued 2023-04-10
keyword 
                                            [
  "dual comb spectroscopy",
  "electro-optic frequency comb generators",
  "frequency combs",
  "photonic thermometry",
  "remote sensing",
  "thermometry"
]
language 
                                            [
  "en"
]
license https://www.nist.gov/open/license
modified 2023-03-21 00:00:00
programCode 
                                            [
  "006:045"
]
publisher 
                                            {
  "name": "National Institute of Standards and Technology",
  "@type": "org:Organization"
}
references 
                                            [
  "https://doi.org/10.1364/OL.482838"
]
theme 
                                            [
  "Physics:Spectroscopy",
  "Physics:Thermodynamics"
]
title Dual electro-optic frequency comb photonic thermometry

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