ASE source interrogating optical fiber under mechanical constraint. Reflected signal is displayed.
Personal research project led at Lycée Privé Sainte Geneviève, testing theoretical uses of Bragg grating of optical fibers on different use cases.
We found a mathematical and physics approach to quantify Bragg wavelength change under heat, mechanical and pressure constraints.
Our physical solution was then compared to test results led on grated optical fiber at CEA-Leti Laboratory in Paris, France.
Fiber Bragg Grating theory
The capability of receiving high-precision exterior constraints information while being at far distance and able to determine which sector exactly of the fiber is under pressure makes the Bragg grating an excellent solution for structure monitoring (tunnels, monuments...).
Obtained results for heat change of optical fiber.
The capability of receiving high-precision exterior constraints information while being at far distance and able to determine which sector exactly of the fiber is under pressure makes the Bragg grating an excellent solution for structure monitoring (tunnels, monuments...).
