Compensation of the laser parameter fluctuations in large ring-laser gyros: a Kalman filter approach

• Published in: Applied optics. Optical technology and biomedical optics Vol. 51; no. 31; p. 7518
• Main Authors: Beghi, Alessandro, Belfi, Jacopo, Beverini, Nicolò, Bouhadef, B, Cuccato, D, Di Virgilio, Angela, Ortolan, Antonello
• Format: Journal Article
• Language: English
• Published: United States 01.11.2012

He-Ne ring-laser gyroscopes are, at present, the most precise devices for absolute angular velocity measurements. Limitations to their performance come from the nonlinear dynamics of the laser. Following Lamb semiclassical theory, we find a set of critical parameters affecting the time stability of...