Counting of Hong-Ou-Mandel Bunched Optical Photons Using a Fast Pixel Camera

Abstract

The uses of a silicon-pixel camera with very good time resolution ($\sim$nanosecond) for detecting multiple, bunched optical photons is explored. We present characteristics of the camera and describe experiments proving its counting capabilities. We use a spontaneous parametric down-conversion source to generate correlated photon pairs, and exploit the Hong-Ou-Mandel interference effect in a fiber-coupled beam splitter to bunch the pair onto the same output fiber. It is shown that the time and spatial resolution of the camera enables independent detection of two photons emerging simultaneously from a single spatial mode.

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• High-Fidelity Simultaneous Detection of Trapped Ion Qubit Register
• Two-tone Doppler cooling of radial two-dimensional crystals in a radiofrequency ion trap
• Multivariate Discrimination in Quantum Target Detection
• Towards Quantum Telescopes: Demonstration of a Two-Photon Interferometer for Quantum-Assisted Astronomy
• High-Precision Measurement of Time Delay with Frequency-Resolved Hong-Ou-Mandel Interference of Weak Coherent States