Orbital angular momentum high-capacity communication switching utilizing optical neural network chip

https://phys.org/news/2024-08-advanced-orbital-angular-momentum-mode.html

"flexible arbitrary mode switching among 3 OAM modes within spatial multimode fiber... advanced gradient descent algorithm ensuring crosstalk between channels remains below −18.7 dB, thereby maintaining the integrity of the transmitted signals... significant advancement in the field of optical communications"

Related: High-speed all-optical neural networks empowered spatiotemporal mode multiplexing
https://www.eurekalert.org/news-releases/1108454