Coherent light generators – Particular resonant cavity – Mirror support or alignment structure
Patent
1987-06-25
1989-05-16
Davie, James W.
Coherent light generators
Particular resonant cavity
Mirror support or alignment structure
356350, H01S 3086
Patent
active
048316326
ABSTRACT:
A method and apparatus for aligning the mirrors of a laser cavity while the cavity is lasing. The orientation of the reflecting surface of the mirror in a laser cavity is modified by deforming the rear surface of the mirror in order to achieve a desired orientation of the reflecting surface and maintaining the reflecting surface in the desired orientation. In accordance with the preferred embodiment of the invention, the mirror is maintained in a desired orientation with a cavity alignment spring. More particularly, a spring is attached to a projection on the rear surface of the mirror and is adapted to apply a predetermined deflection to the projection. Thus, the spring engages and applies a mechanical force to a flexible member on which the reflecting surface is provided from outside the cavity in order to distort and maintain distorted the reflecting surface to a position which enables the proper laser operation.
REFERENCES:
patent: 3906394 (1975-09-01), Tanaka
patent: 4628515 (1986-12-01), Rodloff et al.
patent: 4691323 (1987-09-01), Ljung et al.
British Aerospace Public Limited Company
Davie James W.
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