Figure 1: Measuring quantum correlations in a confocal microscope.

(a) Schematic of a single-photon fibre bundle camera (SFICAM) with 15 single-photon avalanche detectors (SPADs). (b) Cross-section of the fibre bundle. This segmented image was compiled by thresholding an array of optical microscope images in which light was input into one of the fibres (see more details in Supplementary Fig. 5). Scale bar, 100 μm.