Pushing the Limits of Multiplier-Based Local Oscillator Chains

摘要

Generation of coherent terahertz radiation remains a critical technological challenge for applications such as spectroscopy, imaging, communications and radar. A review of the current state-of-the-art for terahertz sources is presented with emphasis on Schottky diode-based frequency multiplier technology. A simple power-combining approach has been demonstrated successfully around 300 GHz. This approach provides a framework for pushing both the output power and the upper frequency range of GaAs Schottky diode based terahertz sources.