(EN) stabilized solid-state laser gyroscope with anisotropic medium

摘要

The invention relates to solid-state laser gyroscopes. One of the major problems inherent to that technology is that the optical emission of this type of laser is intrinsically highly power unstable. In order to reduce this instability, the invention provides for the introduction in the cavity (1) of controlled optical gains by installing an optical assembly comprising an anisotropic medium (19), a first optical element (7) and a second optical element with non-reciprocal effect (8) each acting on the polarization of the counter-propagating modes, at least one of those two effects being variable, for introducing controlled optical gains based on the direction of propagation of the counter-propagating optical modes. The invention also concerns several devices for implementing either the fixed effects of element (7) associated with variable non-reciprocal effects, or vice versa. Said devices are applicable in particular to monolithic cavity lasers.