Optoelectronic phase-locked loop for millimeter-wave and THz beat note stabilization

摘要

A novel scheme based on opto-electronic down conversion is proposed and demonstrated to obtain an ultra-high spectral purity and tunable optical beat note in the GHz and millimeter wave range. An in-loop relative frequency stability better than 4 10sup-12/sup is reported. This approach opens the way to THz metrology.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.