LASER GYRO RING RESONATOR Russian patent published in 2018 - IPC G01C19/66 

FIELD: optics.

SUBSTANCE: present invention relates to adaptive optics and can be used to stabilize the frequency of an annular laser in the circumferential ring laser resonator adjustment systems of a laser gyroscope. Technical result is achieved by a ring resonator with a monoblock made of a crucible CO-115M, where a piezocorrector is used to stabilize the frequency of a ring laser, containing a mirror substrate and a piezo drive comprising a membrane. In this case, according to the first embodiment of the piezocorrector, a screw is connected in the axial hole of the central part of the membrane connected to the central transfer part of the substrate through an intermediate metal disk made with a height satisfying the condition: , where: T_min=-60 °C – minimum monobloc temperature; T_max=+80 °C – maximum monobloc temperature; P – perimeter of the ring resonator at the nominal monoblock temperature; θ – angle of incidence of the laser beam on the mirror; h_D – height of the disc at the nominal monoblock temperature; α_D – temperature coefficient of linear expansion of the material of the disk; α_KR – temperature coefficient of linear expansion of monoblock material; – ratio of the flexural stiffness of the membranes, respectively, of the mirror substrate C₃ and a piezoelectric motor C_P. According to the second embodiment of the piezo corrector, the central portion of the piezo drive membrane is rigidly connected to the inner surface of the central transfer portion of the substrate, and the pivot part of each pawl leg mount is made with a height satisfying the condition: , where: h_L – height of the rod part of the tabs at the rated temperature of the monoblock; α_L – temperature coefficient of linear expansion of the material of the rod part of the legs.

EFFECT: improving the quality of stabilization of the ring laser frequency in systems for adjusting the perimeter of the ring resonator of a laser gyroscope.

2 cl, 3 dwg