Milliwatt peak power cross-correlation frequency resolved optical gating geometry using fiber four-wave mixing

We have developed a variant of frequency resolved optical gating (FROG) using fiber four-wave mixing that has allowed the characterization of milliwatt peak power picosecond pulses in a compact and all-fiber connectorized configuration. In this communication, we extend the application range of this technique to a cross-correlation geometry using two synchronous sources at distinct wavelengths.