Skip to Main content Skip to Navigation
Theses

Toward the temperature and strain discrimination by Brillouin based distributed fiber sensor

Abstract : The objective is to develop a sensor capable of discriminating between temperature and strain relying on a single fiber over long distances. This will be done by using a coupled simulation / experiment approach. a simulation model of the Brillouin response in an optical fiber has been developed. The simulation model takes into account the composition of the fiber and the distribution of dopants. An optimization of two optical fiber structures was modeled, which made it possible to highlight the robustness of the simulation model. Subsequently, these two structures were manufactured. Tests on fiber conditions were carried out in order to obtain a fiber with the best temperature / strain discrimination capabilities and to verify the robustness of the manufacturing. All the fibers presented have a Brillouin signature with several peaks. The experimental results were compared with the simulation data and show similar results. The discrimination capabilities of optical fibers have been verified and compared with the fibers already on the market. Some fibers presented in this PhD thesis show discriminating capabilities superior to the fibers reported in literature.
Document type :
Theses
Complete list of metadatas

Cited literature [159 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-02880086
Contributor : Abes Star :  Contact
Submitted on : Wednesday, June 24, 2020 - 3:50:12 PM
Last modification on : Tuesday, October 20, 2020 - 11:28:27 AM

File

These-Camille-Sabatier-2019.pd...
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-02880086, version 1

Citation

Camille Sabatier. Toward the temperature and strain discrimination by Brillouin based distributed fiber sensor. Optics [physics.optics]. Université de Lyon, 2019. English. ⟨NNT : 2019LYSES027⟩. ⟨tel-02880086⟩

Share

Metrics

Record views

73

Files downloads

106