  The ubiquity of optical communications is due in large part to the advent of
the optical fibre, which allows for flexible and efficient routing of
light-encoded information. Used as serial channels, single fibres have also
been shown to be effective to transport quantum information, for instance in
commercial quantum key distribution systems. As fibre technology progresses to
support the transmission of full images, e.g. in endoscopic devices, the
question arises whether this technology is also suitable for the parallel
transport of spatial quantum information, such as quantum images. Here we
demonstrate the transport of quantum intensity correlations through a conduit
made of the ordered packing of thousands of fibres, in a way which preserves
localised intensity-difference squeezing. Maintaining the spatial character of
quantum information opens the way to the use of guided-light technology in the
emergent field of quantum imaging.
