Mode coupling control in a resonant device: application to solid-state   ring lasers
  A theoretical and experimental investigation of the effects of mode coupling in a resonant macro- scopic quantum device is achieved in the case of a ring laser. In particular, we show both analytically and experimentally that such a device can be used as a rotation sensor provided the effects of mode coupling are controlled, for example through the use of an additional coupling. A possible general- ization of this example to the case of another resonant macroscopic quantum device is discussed. 
Sylvain Schwartz (LCFIO, TRT), Gilles Feugnet (TRT), Philippe Bouyer   (LCFIO), Evguenii Lariontsev, Alain Aspect (LCFIO), J...