Calcium-yttrium silicate oxyapatite lasers
AssigneeLitton Systems, Inc.
InventorsRoger F. Belt, Mark Randles
Life of this patent
Estimating the term…
Abstract
A calcium yttrium silicate oxyapatite laser crystal doped with thulium provides a laser material finding particular utility in 2 .mu.m diode pumped lasers. The calcium yttrium silicate oxyapatite doped with trivalent thulium, preferably has the formula Ca(Tm.sub.x Y.sub.1-x).sub.4 (SiO.sub.4).sub.3 O, where x=0.0025-0.12.
Claims10
A single crystal of calcium yttrium silicate oxyapatite doped with trivalent thulium.
In a laser comprising a single crystal incorporating a dopant and means for exciting atoms of the dopant to emit coherent radiation, the improvement which comprises utilizing, as the laser host, a single crystal of calcium yttrium silicate oxyapatite doped with trivalent thulium ions.
In a 2 .mu.m solid state laser, the improvement which comprises utilizing, as the laser host, a single crystal of calcium yttrium silicate oxyapatite doped with trivalent thulium ions.
Dependencies are inferred from the claim text.