PULSED TWO-MODE SOLID-STATE LASER Russian patent published in 2015 - IPC H01S3/30 H01S3/10 

FIELD: physics, optics.

SUBSTANCE: invention relates to laser engineering. A pulsed two-mode solid-stage laser comprises a rotary dihedral rectangular prism for breaking the axis of a resonator, an active element having stimulated Raman scattering (SRS) conversion, a wedge compensator, second dihedral rectangular prism which constitutes, with an output mirror, a single end element of the resonator and a pumping lamp. The laser further includes plane-parallel plates capable of entering/exiting the beam area between the active element and the second dihedral prism at an angle of 90 degrees to each other and a passive laser shutter (PLS₁) between the first rectangular prism and the active element. The input surfaces of the plane-parallel plates and the PLS₁ are coated with a beam-splitting coating having minimal radiation reflection for operating wavelengths and maximum radiation reflection at non-operating wavelengths. The passive laser shutter PLS₁ is inclined relative to the end of the active element at an angle α>d/L, where L is the distance from the active element to the PLS₁, d is the diameter of the active element. The plane-parallel plates and the first PLS₁ can exit from the resonator with simultaneous entry of a second passive laser shutter (PLS₂) into the resonator.

EFFECT: enabling operation of the laser in both a wavelength range safe for the eyes and at basic transition radiation wavelength.

2 cl, 1 dwg