High-bit-rate long-distance quantum communication is a proposed technology for future communication net-works and relies on high-dimensional quantum entan-glement. While the spatial modes of light provide an avenue for high-dimensional entanglement, photon states can decay over long distances, thus a way to am-plify the signal is needed. Comparable to classical re-peaters, entanglement swapping is used to generate remote quantum correlations between particles that have not interacted, thus reducing the effects of decay and loss.