Laser apparatus with electro-optic Q-switch assembly

Details Laser apparatus with electro-optic Q-switch assembly Laser apparatus with electro-optic Q-switch assembly

1983-12-27

1986-07-01

Davie, James W.

Coherent light generators

Particular beam control device

Q-switch

372106, H01S 3115

Patent

active

045984050

ABSTRACT:
Laser apparatus with an electro-optic Q-switch assembly comprises a lasing medium which produces an unpolarized light beam when pumped, a polarizing beam splitter dividing the unpolarized beam into two orthogonally polarized parallel sub-beams, and a totally reflecting turning element which returns each sub-beam to the beam splitter along the path of the other sub-beam. A Q-switch is located in the path of one of the sub-beams. When the Q-switch is energized, the reflected polarization-shifted sub-beams are recombined at the splitter and pass through the lasing medium and adjacent partially-reflecting element as the output. When the Q-switch is deenergized, the sub-beams are dumped at the splitter which prevents the laser from oscillating.

REFERENCES:
patent: 3497828 (1970-02-01), Telk et al.
patent: 3740663 (1973-06-01), Andringa
patent: 3783406 (1974-01-01), Hook et al.
patent: 3831106 (1974-08-01), Ward
patent: 3914710 (1975-10-01), Young
patent: 4019156 (1977-04-01), Fountain et al.
patent: 4375684 (1983-03-01), Everett
patent: 4441186 (1984-04-01), Erickson

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