Laser apparatus with a multipass resonator

Details Laser apparatus with a multipass resonator Laser apparatus with a multipass resonator

1988-12-13

1989-10-03

Sikes, William L.

Coherent light generators

Particular resonant cavity

Folded cavity

372 19, 372 99, 372103, 372107, 372108, H01S 3081, H01S 3098

Patent

active

048721794

ABSTRACT:
A laser device includes a multipass resonator which has, in the beam path between two resonator end mirrors, at least two opposite beam folding mirrors with confronting mirror surfaces. At least one of the beam folding mirrors is limited in its width and at least one has a beam discharge area. To produce a low-order laser mode, preferably a 00 mode, the mirror surface of at least one beam folding mirror has its reflectivity dimishished in the region outside of the desired modes of radiation.

REFERENCES:
patent: 3824488 (1974-07-01), Aleksoff
patent: 3904983 (1975-09-01), Moreno et al.
patent: 4686685 (1987-08-01), Hoag
patent: 4703491 (1987-10-01), Lim

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