Solid-state laser resonator

A solid-state laser resonator comprising:

• a first reflector;
• a second reflector;
• at least one of said first and second reflectors having a convex, curved mirror surface;
• a laser medium, having a first end face and a second end face, said laser medium being interposed between said first and second reflectors;
• a plurality of laser sources for emitting laser beams directed through said first reflector to said laser medium, to produce a pumping lights on said first end face;
• and
• a plurality of thermal lenses formed within said laser medium and resonant with said first and second reflectors and said laser medium to cause a laser beam to be emitted at said second end face through said second reflector, wherein the distance between said laser beams incident on said first end face is selected to prevent the thermal lenses from optically interfering with each other by causing the relative spacings between the pumping lights on said first end face to have predetermined values.

A solid-state laser resonator comprising:

• a first reflector;
• a second reflector;
• a laser medium, having a first end face and a second end face, said laser medium being interposed between said first and second reflectors;
• a plurality of laser sources for emitting laser beams directed through said first reflector to said laser medium, to produce a pumping lights on said first end face;
• and
• a plurality of thermal lenses formed within said laser medium and resonant with said first and second reflectors and said laser medium to cause a laser beam to be emitted at said second end face through said second reflector, wherein each of said first reflector and said second reflector have a convex, curved-surface mirror.