FIELD: quantum electronics.
SUBSTANCE: proposed laser characterized in its ability to dispense with external energy consumption has active element, resonator, and optical pumping source covered with luminescent layer; pumping source is made in the form of stack of flat light-emitting elements having central bore and coaxially arranged in tandem on laser active element; luminescent layer is made of radioluminescent material and disposed on side surfaces of flat elements.
EFFECT: enlarged service life of laser.
3 cl, 2 dwg
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