Multidimensional Entanglement Generation with Multicore Optical Fibers

Trends in photonic quantum information follow closely the technical progress classical optics and telecommunications. In this regard, advances multiplexing optical communications channels have also been pursued for generation of multi-dimensional states (qudits), since their use is advantageous several tasks. One current path leading direction through space-division multi-core fibers, which provides a new platform efficiently controlling path-encoded qudit states. Here we report on parametric down-conversion source entangled qudits that fully based (and therefore compatible with) state-of-the-art fiber technology. The design uses modern beam splitters to prepare pump laser as well measure generated state, achieving high spectral brightness while providing stable architecture. addition, it can be readily used with any core geometry, crucial widespread standards fibers telecommunications yet established. Our represents an important step towards compatibility next-generation networks.