JP2017017196A5 - - Google Patents

Claims (3)

An external columnar solid-state laser medium;
An output mirror disposed on the tip side on the optical path of laser light extending in the axial direction from the solid-state laser medium, and emitting pulsed laser light to the outside;
A rear mirror disposed on the rear end side on the optical path extending in the axial direction from the solid-state laser medium;
A Q switch provided in an optical resonator formed by the output mirror and the rear mirror;
A first excitation light source that irradiates excitation light from the side toward the solid-state laser medium;
A second excitation light source that irradiates excitation light from behind toward the solid-state laser medium;
A Q-switched laser device comprising: The Q-switched laser device according to claim 1,
The output of the first excitation light emitted from the first excitation light source and the output of the second excitation light emitted from the second excitation light source are the gain of the solid-state laser medium by the first excitation light, and the Each of the gains of the solid-state laser medium by the second excitation light is set to a value that is less than an oscillation threshold value capable of oscillating pulsed laser light. The Q-switched laser device according to claim 1 or 2,
The first excitation light source is a flash lamp;
The second excitation light source is a laser diode;
By further controlling the emission of excitation light of the flash lamp and the laser diode, further comprising a control unit for controlling the oscillation of the laser pulse,
The control unit outputs a trigger signal for starting light emission of the flash lamp and a trigger signal for starting light emission of the laser diode at the same timing.