Septriani, B.B.SeptrianiVries, O. deO. deVriesGräfe, M.M.Gräfe2022-03-142022-03-142019https://publica.fraunhofer.de/handle/publica/40651710.1109/CLEOE-EQEC.2019.8872270We present a parametric study of QRNG harnessing phase diffusion in gain-switched DFB laser diode. Our findings give new insights into the process, its limitations regarding maximum raw data rate, and advantage of pulsed regime.en620conference paper