Multi-GSPS all-optical ADC for direct digital receivers

Abstract

Multi-beam phased array antennas are employed in wireless communications, where RF direct down-conversion, timing synchronization, and analog-to-digital are of important functions. Design of a novel all-optical ADC using spectral, technique is presented, where sampling speeds as high as 40GSPS with 6 bits of resolution is attainable. © 2006 IEEE.