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Spatial Mode Diversity for Robust Free-Space Optical Communications
Mitchell A. Cox, Carmelo Rosales-Guzmán, Ling Cheng +1
Free-space communication links are severely affected by atmospheric turbulence, which causes degradation in the transmitted signal. One of the most common solutions to overcome thi…
Observation of local entanglement oscillation in free space
Eileen Otte, Carmelo Rosales-Guzmán, Bienvenu Ndagano +2
It is well known that the entanglement of a quantum state is invariant under local unitary transformations. It dictates, for example, that the degree of entanglement of a photon pa…
Creation and characterization of vector vortex modes for classical and quantum communication
Bienvenu Ndagano, Isaac Nape, Mitchell A. Cox +2
Vector vortex beams are structured states of light that are non-separable in their polarisation and spatial mode, they are eigenmodes of free-space and many fibre systems, and have…
A hybrid quantum eraser scheme for characterization of free-space and fiber communication channels
Isaac Nape, Charlotte Kyeremah, Adam Vallés +3
We demonstrate a simple projective measurement based on the quantum eraser concept that can be used to characterize the disturbances of any communication channel. Quantum erasers a…