Fig. 4: Plots of the coincidence rates (blue curve) for the central (Region (1) in Fig. 3b) and the average of the side peaks (Regions (2) and (3) in Fig. 3b).
From: High-quality photonic entanglement out of a stand-alone silicon chip
Each point is obtained with a 5 s integration time and the step increment of π/8. The side peak rates show the stability of the measurement. Here, noise counts are not removed from the measurements, (a) corresponds to the two-FSR shift resonances with a noise of 0.5 counts/s, (b) is the three-FSR shift resonances with a noise of 0.9 counts/s. The error bars for all points come from Poissonian statistics.
