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Figure 12 | EPJ Quantum Technology

Figure 12

From: Exploiting the wide dynamic range of silicon photomultipliers for quantum optics applications

Figure 12

Noise reduction factor for the single-mode thermal state as a function of the mean number of photons detected at a BS output. Colored dots and error bars: experimental data obtained with the slow amplifier and DRS4 digitizer by selecting the peak values (black dots) or integrating over \(\tau = 2\mbox{ ns}\) before the peak (red dots); colored lines: theoretical expectations according to Eq. (5). The fitting parameters for the peak are: \(\epsilon = 0.026\), \(\langle m_{\text{1dc}}\rangle = 0.278\), \(\langle m_{\text{2dc}}\rangle = 0.422\), \(t=0.924\) and \(\chi ^{(2)}=3.0\), while those for \(\tau = 2\mbox{ ns}\) are: \(\epsilon = 0.018\), \(\langle m_{\text{1dc}}\rangle = 0.275\), \(\langle m_{\text{2dc}}\rangle = 0.425\), \(t=0.907\) and \(\chi ^{(2)}=2.6\)

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