Electrooptic despeckler based on helix-free ferroelectric liquid crystal
In an experimental sample of a despeckler, consisting of an electrooptic cell with a 20-μm-thick helix-free liquid ferroelectric, to which an electric field with a strength of ∼3V μm{sup −1} and a frequency of 2 kHz is applied, we obtained spatially nonuniform phase modulation of a laser beam with a value exceeding π. The effect allows the implementation of speckle noise suppression with an efficiency of 10.7 dB. (laser applications and other topics in quantum electronics)
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗