FIELD: laser engineering.
SUBSTANCE: device for compensation of thermal expansion of cooling liquid of solid-state laser active member has inlet, outlet collectors, connected with channels and a circular channel, formed by a tube surrounding the active member. Device is equipped with additional inlet and outlet collectors, connected to channels, which are capillary. Cooling liquid has fixed volume, its level always exceeds connection point of the capillary channels with additional inlet, outlet collectors.
EFFECT: technical result is reliable operation of a cooling system of the active member under severe conditions.
2 cl, 2 dwg
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