SOLID-STATE GYROLASER STABILISED BY ACOUSTO-OPTICAL DEVICES

摘要

The invention relates to solid state gyrolasers. A major problem inherent with said technique is that the optical cavity of this type of laser is by nature very unstable. According to the invention, said instability may be reduced by introduction into said cavity (1) of controlled optical losses, depending on the sense of propagation, by means of acousto-optical devices. Several devices are disclosed, using different configurations of acousto-optical devices. Said devices are particularly of application to lasers with monolithic cavities and, in particular, to lasers of the neodymium-YAG type.