Method and system for optical free space communications using non-mechanical beam steering

摘要: A method and system of communicating in free space comprises a first communication terminal having multiplexer circuit for multiplexing plurality analog signals into single broad band frequency division multiplexed signal. laser generates an optical carrier signal, electro-optic modulator produces phase modulated communications pointing tracking beacon is also generated transmitted with the signal to receiver unit positioned at second terminal, such as satellite. The receives includes cascaded Bragg cell liquid crystal. detector detects beacon. controller responsive control receive beam steering assembly change index refraction through