Microwave generation using laser heterodyne technique with independent controllability in frequency and phase

This paper describes the theoretical and experimental investigation of a scheme for microwave generation using laser heterodyne. The frequency of the generated microwave is controlled by changing the frequency difference between two temperature-controlled semiconductor laser diodes. The phase difference between the two microwaves is controlled by changing the difference between the two states of polarization of two laser beams. An attractive feature of this scheme is its easy and independent controllability in frequency and phase