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Updated: Feb 17, 2026
Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
Published on: November 7, 2016
Study of Optical Fiber Sensors for Cryogenic Temperature Measurements
Veronica De Miguel-Soto1, Daniel Leandro2, Aitor Lopez-Aldaba3
1Institute of Smart Cities and Department of Electrical and Electronic Engineering, Campus de Arrosadia S/N, Universidad Pública de Navarra, Pamplona E-31006, Spain. veronica.demiguel@unavarra.es.
Abstract:
In this work, the performance of five different fiber optic sensors at cryogenic temperatures has been analyzed. A photonic crystal fiber Fabry-Pérot interferometer, two Sagnac interferometers, a commercial fiber Bragg grating (FBG), and a π-phase shifted fiber Bragg grating interrogated in a random distributed feedback fiber laser have been studied. Their sensitivities and resolutions as sensors for cryogenic temperatures have been compared regarding their advantages and disadvantages. Additionally, the results have been compared with the given by a commercial optical backscatter reflectometer that allowed for distributed temperature measurements of a single mode fiber.
