摘要
In August of 2020,engineers at University College London(UCL)in the United Kingdom reported a new record for transmitting data through a single optical fiber,hitting 178 terabits per second(Tbps)and beating the old mark by 20%[1].And in June 2020,two US telecommunications companies,Sunnyvale,CA-based Infinera and Little Rock,AK-based Windstream,reached another milestone.For the first time,the collaborators maintained an 800 gigabits per second(Gbps)transmission rate in one fiber over a long distance,using a line running more than 730km from San Diego,CA,to Phoenix,AZ,USA[2].
