Optimizing the electronic control loop of a solid-state ring laser gyroscope

Sylvain Schwartz (1) , Maxence Rebut (1) , Gilles Feugnet (1) , Joseph Colineau (1) , Jean-Paul Pocholle (1)

1 Thales Research and Technology [Palaiseau]

We study in this Letter the dynamical effects of the limited bandwidth of the control electronics in a solid-state (Nd-YAG) ring laser gyroscope. We derive a stability condition for the rotation-sensing regime in the case of a first-order control loop, showing that the smallest measurable rotation speed depends directly on the cutoff frequency value. Our experimental measurements are in good agreement with this prediction.

Mots clés: solid-state laser; ring laser gyroscope; feedback loop

Domaines: Optique [physics.optics]

Sylvain Schwartz, Maxence Rebut, Gilles Feugnet, Joseph Colineau, Jean-Paul Pocholle. Optimizing the electronic control loop of a solid-state ring laser gyroscope. 2007. ⟨hal-00170067⟩