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US 3,946,331 AGranted
Nernst lamp for laser pumping
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsSlava A. Pollack, Van O. Nicolai
Life of this patent
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Abstract
A Nernst lamp is used as the pumping means for a solid state laser. The l materials are selected so that the light energy emitted is essentially concentrated in the relatively narrow pump region of the absorption spectrum of the laser crystal. The input power in to the laser is equivalent to that of much higher power lamps operating over a much wider spectrum.
Claims8
A laser apparatus comprising:
- laser means with a lasing medium adapted to absorb energy of a specific frequency range;
- and
- pumping means with a radiating source formed from an electrically conductive ceramic doped with specially chosen oxides so that a selective thermal radiator is formed with emissivity properties approximately matching the spectral absorption properties of said lasing means, said pumping means being suitably positioned adjacent said lasing medium so that the energy from said pump means may be radiated thereon.
A laser apparatus comprising:
- solid state lasing means with a lasing medium adapted to absorb energy of a specific frequency range;
- and
- pumping source means comprising a selective thermal radiator for radiating energy which is essentially concentrated in the absorption region of said lasing means, said pumping source means being suitably positioned adjacent to the lasing medium of said solid state lasing means so that said pumping source means radiates its energy thereon.
Dependencies are inferred from the claim text.