Rj. Stone et al., Independent phase and magnitude control of an optically carried microwave signal with a three-terminal vertical-cavity surface-emitting laser, IEEE PHOTON, 11(4), 1999, pp. 463-465
We demonstrate a compact integrated method for phase and magnitude control
of an optically carried microwave signal with no external high-frequency ci
rcuitry. Our device consists of a novel three contact VCSEL, which permits
external control of both the cavity loss and gain, Independent control of t
he phase and magnitude of the optically carried signal is demonstrated. Wit
h reference to the small-signal rate equations, we show that such independe
nt control is only possible given the extra degree of freedom offered by th
e three contact design.