Solid-state laser device comprising a temperature-controlled the

Details Solid-state laser device comprising a temperature-controlled the Solid-state laser device comprising a temperature-controlled the

1992-08-26

1993-11-30

Epps, Georgia Y.

Coherent light generators

Particular temperature control

372 36, 372 71, 372 75, H01S 304

Patent

active

052672522

ABSTRACT:
In a solid-state laser device which emits an output laser beam by pumping a solid-state laser medium in a laser resonator by an excitation laser beam generated from a semiconductor laser unit, both the solid-state laser medium and the laser resonator are mounted on a common thermal conductive support which is thermally controlled by a temperature controller through a Peltier effect element to keep a temperature of the thermal conductive support substantially constant. A thermistor is attached to the thermal conductive support to detect the temperature of the support and to supply the temperature controller with a temperature detection signal representative of the temperature of the support. The temperature controller carries out proportional-plus-integral-plus-derivative control to supply a control signal to the Peltier effect element.

REFERENCES:
patent: 4653056 (1987-03-01), Baer et al.
patent: 5068865 (1991-11-01), Ohshima et al.
patent: 5181214 (1993-01-01), Berger et al.

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