Over 40 Gbps tri-type quantum random number generator

Quantum random generators have successfully generated single-distribution unpredictable true random numbers. However, the optimal distribution of random numbers for various applications is usually different, and converting one distribution of random numbers to another type sacrifices a lot of secure bits. Here, we develop a quantum random number generator that can on-demand produce three distribution types of random numbers at over 60 Gbits/s raw bits based on measuring the quantum vacuum noise. After randomness extraction, over 42 Gbits/s secure bit rate is demonstrated. The switching between different types of random numbers is achieved on electronics, which does not affect the generation speed. The random numbers pass standard tests and are available for quantum networking simulations using Cisco QNDK.