Low noise amps deliver 4,000 km optical transmission
Researchers from Chalmers University of Technology, Sweden, and Tallinn University of Technology, Estonia, have demonstrated a 4,000 km fibre optic transmission link using ultra low-noise, phase-sensitive optical amplifiers. This is reckoned to be a reach improvement of almost six times that which is possible when using conventional optical amplifiers.The results are published in Nature Communications. The […]