Laser

Details Laser Laser

1998-09-04

2000-11-07

Font, Frank G.

Coherent light generators

Particular resonant cavity

Specified cavity component

372 93, 372 95, 372107, H01S 3081, H01S 308

Patent

active

061446874

ABSTRACT:
A laser includes a lasing medium having a slab geometry, a waveguide arrangement either side of the slab, mirrors forming an unstable sub-resonator acting in a plane perpendicular to the waveguide, and a concave mirror arrangement acting on light incident on it launched from the waveguide, and thereby transformed from waveguide light to free space light, to redirect and retransform a portion of said light to be re-entrant waveguide light constituting the unstable sub-resonator round-trip self-replicating light. The unstable sub-resonator preferably includes a folding mirror to direct light towards the concave mirror, and the concave mirror is preferably partially transmissive.

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