Millimeter-wave frequency converting fiber optic link modeling and results

A down-conversion photonic link implemented with a pair of parallel Mach-Zehnder modulators has been demonstrated. The block down-converter has a fixed local oscillator at 22 GHz and has demonstrated conversion of the 26 - 40 GHz millimeter-wave band down to the 4 - 18 GHz microwave intermediate frequency band. A conversion efficiency improvement over down-conversion links with serial modulator topologies with comparable components is predicted.