Highly efficient local-oscillator-free photonic microwave down-converters based on period-one nonlinear dynamics of semiconductor lasers

Photonic microwave down-conversion using period-one nonlinear dynamics of semiconductor lasers is proposed, which provides high conversion efficiency and requires no local oscillators. Experimental demonstration of microwaves at 33.7GHz down-converted to a frequency ranging from 10 to 14 GHz is presented.