High-integrated quantum random number generator chip based on vacuum fluctuation

Abstract

We propose and implement a quantum random number generator chip based on vacuum fluctuation. The chip with PD is only 5mm×4.6mm in size. When 1550nm, 10mW laser is input, and the thermo-modulated VOA voltage is around 1.257, PD can achieve balance detection. The original data through oscilloscope collection and MATLAB processing, the SNR is 15.34. The random number generator can be used in cryptography, simulation calculation, lottery industry, etc.