AM based SNR and Bandwidth Estimation for Multi-level Rydberg Atomic System

Rydberg atomic sensors have been seen as a novel radio frequency (RF) measurements and the high sensitivity to a large range of frequencies makes it attractive for communications reception. Based on Lindblad master equation, we discuss the steady state response and bandwidth of four-level Rydberg atomic system under amplitude modulation (AM) signal. Then, we investigate the effect of laser powers and laser detunings on the bandwidth, signal-to-noise ratio (SNR) and output optical intensity difference. The results provide a guideline to find appropriate operation points for bandwidth and responsiveness optimization.