Laser resonator

Details Laser resonator Laser resonator

1995-10-05

1997-03-04

Bovernick, Rodney B.

Coherent light generators

Particular resonant cavity

Folded cavity

372107, 372 65, H01S 3081, H01S 308, H01S 303

Patent

active

056087543

ABSTRACT:
A laser resonator allows internal optical mirrors to be cleaned easily and minimizes any contamination of the internal optical mirrors. The laser resonator has normally closed cleaning windows disposed immediately in front of output, rear, and folding mirrors for inserting a cleaning instrument therethrough for cleaning these mirrors. A gas inlet discharge tube holder has a discharge tube coupling which interconnects the spaces in parallel discharge tubes for transmitting a laser beam therethrough. The gas inlet discharge tube holder also has a gas flow bypass for bypassing a laser gas that circulates through the discharge tubes. The internal optical mirrors can be cleaned easily with a cleaning instrument inserted through the cleaning windows. As the internal optical mirrors do not need to be removed for cleaning, they and an external optical system are not required to be readjusted for alignment of their optical axes. Any contamination of the internal optical mirrors is minimized because no laser gas flow is caused in the discharge tube coupling.

REFERENCES:
patent: 3889209 (1975-06-01), Lavarini
patent: 4672620 (1987-06-01), Slusher et al.

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