Disc piece solid laser
2008
The invention discloses a video disc fixing laser. A video disc laser crystal and a laser cavity resonator output lens form a laser cavity resonator; the focus of one of two paraboloid reflectors positioned in a conjugating way is positioned in the video disc laser crystal; a pump light sent by a semiconductor laser stack array is firstly collimated by a pump light collimator, then is imaged on the video disc laser crystal through the two paraboloid reflectors and is output as laser formed through the laser cavity resonator at last. The invention adopts the method of semiconductor stack arrayand has high efficiency, long service life and convenient equipment maintenance. A double-paraboloid pump system positioned in the conjugating way reduces the requirement for the collimation degree ofthe pump light and realizes high-efficiency imaging of the pump light. Each secondary pump luminous spot has regular and symmetrical shape, reasonable power density distribution and small position excursion of the light luminous spots for each imaging, and high-efficiency and even pumping is realized. The equipment has smaller volume, simple mechanical structure and adjustment and lighter weight,and is convenient for industrial application.
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