Gas laser apparatus

Details Gas laser apparatus Gas laser apparatus

1992-09-28

1993-08-10

Lee, John D.

Coherent light generators

Having an applied magnetic field

372 61, H01S 300

Patent

active

052356086

ABSTRACT:
In a gas laser apparatus including a gas laser tube having a plasma tube between a cathode electrode and an anode electrode, and a magnetic field generator for generating a magnetic field through the central hole of said plasma tube, the radius of the central hole is configured so as to avoid ion bombardment by confining the ionized plasma within the magnetic flux passing through the cathode electrode. For practical purposes the central hole is tapered, at least near the entrance thereof, with its radius larger than that of the magnetic flux entering the central hole, thereby substantially eliminating sputtering by ion plasma at the entrance end and on the inner wall of the plasma tube.

REFERENCES:
patent: 3993965 (1976-11-01), Alves et al.
patent: 4912719 (1990-05-01), Kanamoto et al.

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