Etude d'un gyroscope à fibres optique et d'un gyrolaser

Abstract

The aim of the work presented in this thesis is the study of an optical fiber gyroscope and a laser gyroscope. We essentially give their operating principle, their applications in the field of navigation as well as their advantages over the old techniques: i.e. the mechanical gyroscope. The study being mainly theoretical; simulations have shown the most important parameters to explain their function and especially their advantages. The work is divided mainly into two parts, the first part is dedicated to the study of a fiber Sagnac interferometer, measurement methods (classical and the case of a material medium) and main characteristic of gyrofibre. The second part is devoted to the study of Generalities on laser amplification and specificities of laser amplification in the gyrolaser cavity