Optically stable laser resonator

Details Optically stable laser resonator Optically stable laser resonator

1996-12-04

1998-01-20

Healy, Brian

Coherent light generators

Particular resonant cavity

Specified cavity component

372 92, 372 93, 372 98, H01S 308

Patent

active

057107882

ABSTRACT:
In an optically stable laser resonator which includes at one end a fully reflective mirror, a partially reflective mirror serving as an uncoupling window at the other end and a pair of spherical optical mirrors one being diverging and the other being converging to provide an expanded beam at the uncoupling window wherein the beam axis has an incidence angle w.sub.1 with the diverging lens axis which is between 10.degree. and 45.degree. and the axis of the beam extending between the spherical mirrors has an incidence angle with the converging mirror axis which, depending on the mirror distance and the focal length of the mirrors, is so calculated that astigmatism is essentially eliminated.

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patent: 5212698 (1993-05-01), Kafka et al.
patent: 5289491 (1994-02-01), Dixon

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