We present a random number generation scheme based on measuring the phase fluctuations of a laser with a simple and compact experimental setup. A simple model is established to analyze the randomness and the simulation result based on this model fits well with the experiment data. After the analog to digital sampling and suitable randomness extraction integrated in the field programmable gate array, the final random bits are delivered to a PC, realizing a 5.4 Gbps real time quantum random number generation. The final random bit sequences have passed all the NIST and DIEHARD tests.
@article{arxiv.1609.02681,
title = {A 5.4 Gbps real time quantum random number generator with compact implementation},
author = {Jie Yang and Jinlu Liu and Qi Su and Zhengyu Li and Fan Fan and Bingjie Xu and Hong Guo},
journal= {arXiv preprint arXiv:1609.02681},
year = {2017}
}