Ramsay J V
CSIRO, Division of Physics, NationalStandards Laboratory, Sydney, Australia.
Appl Opt. 1966 Aug 1;5(8):1297-301. doi: 10.1364/AO.5.001297.
The automatic control of the spacing of Fabry-Perot interferometers to transmit at a given wavelength is discussed, and an interferometer is described in which the plates are maintained parallel to within the accuracy of the plates themselves and at a preset spacing. The variation in mean spacing over test periods of several hours has not exceeded +/- 0.7 nm despite temperature fluctuations and other uncontrolled environmental conditions.
