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Single-degree-of-freedom actuator system for controlling Fabry-Perot etalons

This paper describes research in the development of a very high stability Fabry-Perot etalon that is tunable over about three to five interference orders at visible wave lengths. The etalon is intended to support very high resolution spectroscopy by providing stable characteristics that are unachievable by electronic control techniques. The etalon is made possible by the commercial availability of angstrom actuators and their associated technology.