Advanced digital signal processing for ultra-high-capacity optical transmission

https://phys.org/news/2022-04-advanced-digital-ultra-high-capacity-optical-transmission.html

"all-fiber multiplexer to interface single-mode fibers with novel three-core coupled core fibers. transmit 172 Terabits per second over 2040 km... Using infrared camera and reference beam to measure amplitude and phase of both polarizations of optical beam, a full characterization of the phase and amplitude of light was used to obtain key metrics... real-time optical receiver with advanced digital signal processing on a commercial off-the-shelf GPU using CUDA"