Multiple discharge gas laser apparatus

Details Multiple discharge gas laser apparatus Multiple discharge gas laser apparatus

1989-07-03

1992-02-11

Scott, Jr., Leon

Coherent light generators

Particular pumping means

Electrical

372 86, 372 97, H01S 3097

Patent

active

050881043

ABSTRACT:
Multiple discharge gas laser apparatus. A compact apparatus for simultaneously or individually generating a plurality of laser output beams in a selected pattern suitable for marking objects, for communications, or for remote chemical sensing or other remote sensing applications, among other uses, where all of the electrodes providing lasing gas excitation are located in a single gas volume and share a single output coupler is described. In this manner, all of the output beams are parallel in far field, to the extent variations in mode structure permit, without the necessity of undertaking detailed optical adjustments. Moreover, the focal plane of the output laser radiation is insensitive to significant positional variation of focusing optics utilized to increase the intensity thereof for marking purposes. Electrodes can be utilized for more than one discharge; that is, the direction of the discharge can be selected to involve any adjacent electrode having opposite charge polarity.

REFERENCES:
patent: 4345331 (1982-08-01), Hoag
patent: 4481632 (1984-11-01), Heolbrich et al.
patent: 4652722 (1987-03-01), Stone et al.

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