Quantum entropy source on an InP photonic integrated circuit for random number generation

Random number generators are essential to ensuring performance in information technologies, including cryptography, stochastic simulations, and massive data processing. In this talk, we will describe a quantum entropy source for random number generation on an indium phosphide photonic integrated circuit. The proposed chip integrates all the optical elements, including lasers and detectors, and is based on a novel phase-diffusion configuration that uses two-laser interference and heterodyne detection. The resulting device offers high-speed operation and reduced form factor. In addition, its compatibility with complementary metal-oxide semiconductor technology opens the path to its integration in computation and communication electronic devices.