Glass driver for laser mirror

Details Glass driver for laser mirror Glass driver for laser mirror

1987-04-08

1989-04-25

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

372107, G01C 1964

Patent

active

048242535

ABSTRACT:
A device for driving a mirror of a laser cavity has a deflectable body which matches the mirror in coefficient of thermal expansion and acts in response to forces from one or more piezoelectric elements. The piezoelectric elements deflect a membrane of the driver body which acts on the mirror in an axial direction to control the path length of the cavity. In a preferred embodiment, the driver body is made of a low expansion glass-ceramic or fused quartz material and has a peripheral ring and an inner hub for transfer of deflection forces to the mirror in either of two opposite directions.

REFERENCES:
patent: 3533014 (1970-10-01), Coccoli et al.
patent: 4281930 (1981-08-01), Hutchings
patent: 4348113 (1982-09-01), Bonfils
patent: 4410274 (1983-10-01), Ljung
patent: 4410276 (1983-10-01), Ljung et al.
patent: 4691323 (1987-09-01), Ljung et al.

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