Abstract

To record weak light scattering spectra with a Fabry-Perot interferometer, long measuring times are often necessary. For long term stability of the parallel alignment of the mirrors, a microcomputer controlled interferometer system has been developed for both single and multipass operation. The three piezo stacks, which are responsible for the alignment of the mirrors, are supplied from three digital-to-analog converters controlled by a personal computer. The test and correction steps of the mirror alignment are performed around two independent axes perpendicular to each other. A special function generator provides a nonlinear scanning ramp for the piezostacks, thereby allowing a temporally linear scanning of the Fabry-Perot.

© 1990 Optical Society of America

Computer-controlled Fabry-Perot interferometer for Brillouin spectroscopy

A. Asenbaum
Appl. Opt. 18(4) 540-544 (1979)

Tandem multipass Fabry-Perot interferometer for Brillouin scattering

J. G. Dil, N. C. J. A. van Hijningen, F. van Dorst, and R. M. Aarts
Appl. Opt. 20(8) 1374-1381 (1981)

On Automatic Parallelism Control in a Scanning Fabry-Perot Interferometer

C. F. Bruce
Appl. Opt. 5(9) 1447-1452 (1966)

Pressure-scanned three-pass Fabry-Perot interferometer

L. N. Durvasula and Robert W. Gammon
Appl. Opt. 17(20) 3298-3303 (1978)

Optically controlled Fabry-Perot interferometer using a liquid crystal light valve

Donald B. Taber, Jeffrey A. Davis, Lewis A. Holloway, and Ora Almagor
Appl. Opt. 29(17) 2623-2631 (1990)