Silent discharge type pulse laser device

Details Silent discharge type pulse laser device Silent discharge type pulse laser device

1982-06-09

1985-04-09

Davie, James W.

Coherent light generators

Particular beam control device

Control of pulse characteristics

372 33, 372 38, 372 85, H01S 3097

Patent

active

045106061

ABSTRACT:
A silent discharge type pulse laser device having a pair of opposing electrodes, at least one of which is an electrode covered by a dielectric, which is mounted opposite to a metallic electrode with a silent discharge space in between, a laser resonator consisting of a total reflection mirror and a partial reflection mirror mounted opposite to each other with the silent discharge section in between, a source of high frequency voltage for supplying to the pair of electrodes a high frequency voltage having a predetermined period for silent discharge, and a controller for controlling the high frequency voltage from the source with respect to a first interval and a second interval that form a period longer than the period for silent discharge. The high frequency voltage is supplied to the silent discharge section at a first peak voltage value during the first interval and at a second peak voltage value during the second interval, wherein the second peak voltage value is sufficient to cause a discharge but insufficient to excite laser oscillation.

REFERENCES:
patent: 4247829 (1982-01-01), Yagi et al.
patent: 4329662 (1982-05-01), Yagi et al.
"Laser Research" vol. 5, No. 3, p. 171, Abstract of Silent Discharge CO.sub.2 Laser, Japanese Magazine.

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