Optoelectronic generation of time-division multiplexed ultrafast bit stream on a coplanar waveguide

Abstract

We have developed a technique to generate a two-dimensional array of optical beams with equal intensities and a constant sequential time delay from a mode-locked laser. A light modulator was used to code the spatially separated beams, which were then multiplexed to form a serial pulse string. With the multiplexed beam focused on a picosecond photoconductor, an ultrafast electrical signal was generated.