The principles of the acousto-optic and electro-optic deflectors are shortly reviewed. A novel electro-optic prism-array laser beam deflector is proposed and experimentally investigated. Domain inversion in LiNbO3 has been successfully applied to realize the new deflector. The digital deflector mode has been investigated and characteristics like deflection angle, driving voltage, etc. have been measured.
"Beam steering without moving parts", Proc. SPIE 2783, Micro-Optical Technologies for Measurement, Sensors, and Microsystems, (26 August 1996); doi: 10.1117/12.248482; https://doi.org/10.1117/12.248482