Cathode and cathode mount for a gas laser

Details Cathode and cathode mount for a gas laser Cathode and cathode mount for a gas laser

1990-08-06

1991-09-10

Scott, Jr., Leon

Coherent light generators

Particular pumping means

Electrical

372 61, 372 65, H01S 3097

Patent

active

050480464

ABSTRACT:
A gas laser is provided having a cathode which is essentially tubularly designed and surrounds an end of a laser capillary which faces toward it. The cathode has a tube termination which serves the purpose of protecting tube parts situated there behind from the plasma of the laser. It surrounds a beam passage opening which insures that the laser beam can pass through in unattenuated fashion. This beam passage opening can be made smaller and the shielding can thus be improved since an extension of the mount for the optical elements of the laser projects into the interior of the laser, and the cathode is fixed to the extension at least in a radial direction. The invention is particularly suited for helium-neon lasers.

REFERENCES:
patent: 3739297 (1973-06-01), Mark
patent: 3766487 (1973-12-01), Roex
patent: 3784927 (1974-01-01), Rudolph
patent: 3988698 (1976-10-01), Crane et al.
patent: 4203080 (1980-05-01), Wright et al.
patent: 4311969 (1982-01-01), Kolb
patent: 4644554 (1987-02-01), Sheng
patent: 4823356 (1989-04-01), Riley
patent: 4866726 (1989-09-01), Ortiz et al.

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