Coherent light generators – Particular pumping means
Patent
1991-05-10
1992-04-14
Scott, Jr., Leon
Coherent light generators
Particular pumping means
372 41, 372 70, 372 75, 372 20, H01S 314
Patent
active
051054345
ABSTRACT:
An all-solid-state laser system is disclosed wherein the laser is pumped in the longwave wing of the pump absorption band. By utilizing a laser material that will accept unusually high dopant concentrations without deleterious effects on the crystal lattice one is able to compensate for the decreased cross section in the wing of the absorption band, and the number of pump sources which can be used with such a material increases correspondingly. In a particular embodiment a chromium doped colquiriite-structure crystal such as Cr:LiSrAlF.sub.6 is the laser material. The invention avoids the problems associated with using AlGaInP diodes by doping the Cr:LiSrAlF.sub.6 heavily to enable efficient pumping in the longwave wing of the absorption band with more practical AlGaAs diodes.
REFERENCES:
patent: 4811349 (1989-03-01), Payne et al.
Krupke William F.
Payne Stephen A.
Carnahan L. E.
Gaither Roger S.
Jr. Leon Scott
Moser William R.
The United States of America as represented by the United States
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