Modal decomposition of light has been known for a long time, applied mostly to pattern
recognition. With the commercialization of liquid-crystal devices, digital holography as an …

A few decades ago, quantum optics stood out as a new domain of physics by exhibiting
states of light with no classical equivalent. The first investigations concerned single photons …

Mode division multiplexing (MDM)–using a multimode optical fiber's N spatial modes as data
channels to transmit N independent data streams–has received interest as it can potentially …

The optical fibre is an essential tool for our communication infrastructure since it is the main
transmission channel for optical communications. The latest major advance in optical fibre …

Photons are often referred to as flying quantum bits, a phrase that emphasizes both their
quantum character and their ability to carry quantum information between two distant points …

Multiphoton propagation in connected structures—a quantum walk—offers the potential of
simulating complex physical systems and provides a route to universal quantum …

High-dimensional entanglement has demonstrated its potential for increasing channel
capacity and resistance to noise in quantum information processing. However, distributing it …

Here we employ both dynamic and geometric phase control of light to produce radially
modulated vector-vortex modes, the natural modes of optical fibers. We then measure these …

High-dimensional entangled quantum states improve the performance of quantum
technologies compared to qubit-based approaches. In particular, they enable quantum …

Speckles are ubiquitous phenomena associated with multi‐spatial‐mode optics, which may
reduce detection efficiency and induce modal noise if the photoresponse of the detector is …