Abstract: Disclosed is a diode-pumped solid-state laser having an asymmetrical optical resonator provided with at least two resonator mirrors, inside said resonator being provided at least one thermal lens having an optical refractive power D and having two principal planes respectively and said resonator being definable by the following stability criteria: 0<G1·G2<1 with G1=1?L*/R1?D·d2 G2=1?L*/R2·D·d1 and L*=d1+d2?D·d1·d2 d1,d2 the distances of the resonator mirror from the principal planes of the thermal lens R1, R2 the radii of curvature of the resonator mirrors.

Abstract: Disclosed is a diode-pumped solid-state laser having at least one intracavity positioned laser crystal having at least one optical axis longitudinally to which at least one pumped-light beam emitted from at least one pumped-light source is incident on the laser crystal. The invention is distinguished by the pumped-light beam having a beam diameter corresponding to at least 1.25 times the beam cross section of a laser beam forming inside the resonator with the oscillation mode TEM00.

Abstract: Disclosed is a diode-pumped solid-state laser having an asymmetrical optical resonator provided with at least two resonator mirrors, inside said resonator being provided at least one thermal lens having an optical refractive power D and having two principal planes respectively and said resonator being definable by the following stability criteria: 0<G1·G2<1 with G1=1?L*/R1?D·d2 G2=1?L*/R2·D·d1 and L*=d1+d2?D·d1·d2 d1,d2 the distances of the resonator mirror from the principal planes of the thermal lens R1, R2 the radii of curvature of the resonator mirrors.