LIGHT SOURCE WITH LASER PUMP AND METHOD FOR LASER IGNITION OF PLASMA Russian patent published in 2023 - IPC H01J65/04 H05H1/24 

FIELD: broadband high-brightness light sources.

SUBSTANCE: invention relates to broadband high-brightness light sources based on a continuous optical discharge. The light source contains a gas-filled chamber (1) with an emitting plasma region (2) supported by a focused beam (3) of a continuous laser (4). The means of plasma ignition is a solid-state laser system (7), which generates two pulsed laser beams (8), (9): in the free-running mode and in the Q-switched mode. Herewith the solid state laser system (7) contains only one active element (10), and its optical resonator (12), (13) is equipped with a Q-switch (14), which covers a part (15b) of the aperture of the cavity laser radiation flux (15). The method of plasma ignition is characterized by the fact that one pulsed laser beam (9) of the solid-state laser system (7) performs an optical breakdown, after which another pulsed laser beam (8) ignites the plasma, the volume and density of which are sufficient for stationary maintenance of the plasma by a focused beam (3) continuous laser.

EFFECT: simplification of the design of the light source, increase of its reliability and usability, creation of powerful electrodeless high-power and brightness wideband light sources with the highest possible spatial and energy stability on this basis.

14 cl, 2 dwg