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Temperature measure...
Temperature measurements in deployed optical fiber networks using single photon optical time domain reflectometry
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- Staffas, Theodor (författare)
- KTH,Albanova VinnExcellence Center for Protein Technology, ProNova,Tillämpad fysik
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- Troive, Fredrik (författare)
- KTH,Tillämpad fysik,Albanova VinnExcellence Center for Protein Technology, ProNova
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- Zwiller, Val (författare)
- KTH,Tillämpad fysik,Albanova VinnExcellence Center for Protein Technology, ProNova
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(creator_code:org_t)
- Optica Publishing Group, 2023
- 2023
- Engelska.
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Ingår i: Optics Express. - : Optica Publishing Group. - 1094-4087. ; 31:5, s. 8170-8176
- Relaterad länk:
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https://doi.org/10.1...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We demonstrate an approach to measure average temperature changes in deployed optical fiber networks using Optical Time Domain Reflectometry, OTDR, at the single photon level. In this article we derive a model relating the change in temperature of an optical fiber to the change in time of flight of reflected photons in the fiber in the range -50 -> 400 degrees C. A setup is constructed to validate this model utilizing a pulsed 1550 nm laser and a Superconducing Nanowire Single Photon Detector, SNSPD. With this setup we show that we can measure temperature changes with 0.08 degrees C accuracy over km distances and we demonstrate temperature measurements in a dark optical fiber network deployed across the Stockholm metropolitan area. This approach will enable in-situ characterization for both quantum and classical optical fiber networks.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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