‘Flipping’ optical wavefront eliminates distortions in multimode fibers https://www.sciencedaily.com/releases/2021/05/210510161500.htm See also: https://www.electronicsweekly.com/news/research-news/200-modal-carriers-received-1km-multi-mode-fibre-2021-05/ https://phys.org/news/2021-05-flipping-optical-wavefront-distortions-multimode.html
