Solid-state laser device capable of stably producing an output l

Details Solid-state laser device capable of stably producing an output l Solid-state laser device capable of stably producing an output l

1992-08-28

1994-05-10

Davie, James W.

Coherent light generators

Particular temperature control

Liquid coolant

372 34, 372 75, H01S 3045

Patent

active

053115287

ABSTRACT:
In a solid-state laser device comprising a solid-state laser medium disposed in a laser resonator and a semiconductor laser device for exciting the solid-state laser medium, the solid-state laser device comprises a vessel for receiving the solid-state laser medium and the semiconductor laser device. The vessel is filled with a refrigerant so that the refrigerant is contact with at least one part of the semiconductor laser device and at least one of the solid-state laser medium. Connected to the vessel, a temperature controlling device controls temperature of the refrigerant to maintain a predetermined desired temperature so that the excitation laser beam has an excitation wavelength which coincides with an absorption wavelength of the solid-state laser medium. The refrigerant may composed of an insulated transparent liquid or an inert gas. Preferably, the temperature controlling device is a circulating temperature controlling device which has an inlet port for introducing a part of the refrigerant from the vessel and an outlet port for returning the part of the refrigerant to the vessel after keeping the part of the refrigerant at the desired temperature.

REFERENCES:
patent: 4791634 (1988-12-01), Miyake
patent: 5130996 (1992-07-01), Amano et al.

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