Laser interferometer with aspherical holographic test glass for thermal vacuum chamber

摘要

A basic optical layout of a laser interferometer with an aspherical holographic test glass is proposed. It was designed to monitor the shape of the operating convex hyperbolic surface of the secondary mirror inside the space telescope Millimetron at cryogenic temperatures. The possibility of practical implementation of this technical solution is demonstrated. (C) 2017 Optical Society of America