Optically pumped, praseodymium based solid state laser

Details Optically pumped, praseodymium based solid state laser Optically pumped, praseodymium based solid state laser

1995-01-31

1996-07-09

Bovernick, Rodney B.

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

372 40, 372 68, H01S 3091, H01S 3092

Patent

active

055352324

ABSTRACT:
The present invention is a solid state laser, including: (1) a laser cavity defined by a first mirror and an opposing second mirror, where these mirrors are reflective at the output wavelength of the laser; (2) a laser medium disposed in the laser cavity, including a low phonon energy host material, doped with an amount of praseodymium ions sufficient to produce a longitudinal mode laser emission from the transition of the praseodymium ions from the .sup.3 F.sub.3 excited state to a lower energy state when the laser medium is pumped by an appropriate pump, where the energy gap between the .sup.3 F.sub.3 excited state and the lower energy state corresponds to the output wavelength of the laser; and (3) a pump for the laser medium.

REFERENCES:
patent: 3851268 (1974-11-01), Singh et al.
patent: 4477906 (1984-10-01), Case
patent: 5164953 (1992-11-01), Case et al.
patent: 5166948 (1992-11-01), Gavrilovic et al
patent: 5274658 (1993-12-01), Case et al.
patent: 5379149 (1995-01-01), Snitzer et al.
W. E. Case et. al, "The Photon Avalanche In Rare-Earth Crystals",J. Luminence45 351-53 (1990).

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