Silicon-chip-based frequency quadrupling for optical millimeter-wave signal generation

We propose a prototype of a silicon-chip-based frequency quadrupling system integrating a single-drive silicon Mach-Zehnder modulator and a race-track resonator as an optical differentiator. A proof-of-concept demonstration of 40-GHz millimeter-wave signal generation using 10-GHz driving signal is experimentally provided. The factors that impacting the purity of the RF spectrum are discussed through simulation.