Implementation of electro-optic spectral shearing interferometry for ultrashort pulse characterization
15 November 2003
Electro-optic spectral shearing interferometry is implemented for the highly sensitive characterization of ultra-short pulses from a free-running source. A simple phase-locked-loop clock recovery circuit is used to extract the-high-frequency microwave clock signal to drive the phase modulator for spectral shearing. We demonstrate accurate full temporal characterization of 200-fs pulses from an optical parametric oscillator at 5-muW average power. (C) 2003 Optical Society of America.