Optoelectronic phase tracking and electrooptic sampling of free-running microwave signals up to 20 GHz in a laser-diode-based system

Hsiao-Hua Wu, Gong-Ru Lin, Ci-Ling Pan
1995 IEEE Photonics Technology Letters  
We report optoelectronk phase-tracking and electrooptic sampling of microwave signals from a free-running oscillator in a laser-diode-based system. A voltage-controlled oscillator (VCO) in a photoconductive harmonic mixer based phase-lock loop is utilized to gain switch a 0.8 pm laser diode for phase-tracking of the microwave signal at frequencies up to 20 GHz. Phase and amplitude of the microwave signal in a microstrip line is also measured using another 1.3-pm laser diode driven by the VCO.
doi:10.1109/68.388760 fatcat:fdmwdibshbcrra6bjtwg6osl5e