A new rapid scan phase modulator has been studied in a range of interferometric applications from the visible to the millimeter wave region. The modulator consists of two parallel mirrors mounted on a rotating platform. It causes little attenuation and is capable of large changes in optical path length at high speeds. The system is relatively insensitive to vibration and can yield a nearly flat transmission envelope.
© 1981 Optical Society of America
D. J. Campbell, P. A. Krug, I. S. Falconer, L. C. Robinson, and G. D. Tait, "Rapid scan phase modulator for interferometric applications," Appl. Opt. 20, 335-342 (1981)