Attitude and position monitoring system of a cube corner prism used in an optical interferometer

Attitude and position monitoring system of the cube corner prism used in an optical interferometer, which is originally developed for our Levitated Superconductor Experiment, is discussed. In general, the point to be measured by an optical interferometer does not coincide with the measurement point such as the optical center of the cube corner prism used in the optical interferometer. If the attitude of the object, on which the cube corner prism and the point to be measured exist, changes during the measurement, this results in the measurement error. Using the developed system, the attitude (3 degrees of freedom) and the position (2 degrees of freedom) of the cube corner prism in an optical interferometer is monitored from a distant point. Further prospects in applying this developed method to a general interferometer are discussed.