Novel method of collimated laser precision scanning for free-space communication

Abstract

Based on the programmable phase modulation technique with a multi-channel optical wave-guide array, a novel method used for collimated laser precision scanning was presented. Optical system and control circuit have been designed for the multi-channel optical wave-guide array. Theoretical analysis and experimental result shows that the method can be used for small angle adjusting and big angle scanning of collimated laser in free space light communication.