Patent ID: 6442186
Filing Date: 2002-08-27
Classification: H01S

Abstract:
A slab laser with a stable multi-fold telescopic resonator, comprising:first and second elongated resonator walls having light reflecting surfaces with a spacing between the elongated walls, the elongated walls being disposed to form a light guide; a slab of lasing medium disposed between the elongated resonator walls; means for exciting said lasing medium; and first and second resonator mirrors and first and second folding mirrors, wherein the first and the second folding mirrors are concave and positioned at opposite ends of said slab to form an unstable near-confocal or confocal system, the first and the second resonator mirrors together with the first and the second folding mirrors forming a stable multi-fold resonator, the resonator together with the spacing of the first and second resonator walls controlling the propagation modes of laser light within the slab laser.