Laser oscillator

Details Laser oscillator Laser oscillator

1997-01-28

1998-08-04

Scott, Jr., Leon

Coherent light generators

Particular pumping means

Electrical

372 87, 372 61, H01S 3097

Patent

active

057905827

ABSTRACT:
The invention relate to a laser oscillator containing at least one pair of main electrodes within a laser tube. In accordance with the first invention, a downstream one of the main electrodes provided within the laser tube which is located downstream, as viewed in the direction of flow of a laser gas, is substantially L-shaped, with its distal end being supported to extend in a direction to intersect with the axial direction of the laser tube. This improves the oscillation efficiency in exciting the laser radiation as compared with the prior art. According to the second aspect of the invention, a pair of ring-shaped pre-ionization electrodes are disposed upstream of the main electrodes, and there is provided a pre-ionization power supply which applies a high voltage, which may be a pulse wave or an alternating voltage, across the pair of pre-ionization electrodes. The provision of the pair of pre-ionization electrodes enables a uniform pre-ionization, thus allowing a stabilized main discharge to be achieved across the main electrodes.

REFERENCES:
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patent: 3970956 (1976-07-01), Bolduc
patent: 4156208 (1979-05-01), Sasnett
patent: 4257014 (1981-03-01), Hattori et al.
patent: 4734915 (1988-03-01), Mefferd et al.
patent: 4736379 (1988-04-01), Barker et al.
patent: 4811355 (1989-03-01), Krueger et al.
patent: 5115439 (1992-05-01), Howard

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