100 MHz Amplitude and Polarization Modulated Optical Source for Free-Space Quantum Communications at 850 nm

Abstract. We report on an 100 MHz repetition rate integrated photonic transmitter at 850 nm with arbitrary amplitude and polarization mod-ulation. The source is suitable for free-space quantum communication links, in particular for quantum key distribution applications. The whole transmitter, with the optical and electronic components integrated, has reduced size and power consumption. In addition, the optoelectronic components forming the transmitter can be space-qualified, making it suitable for satellite and future space missions