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According to https://hpbn.co/primer-on-latency-and-bandwidth/#bandwidth-in-core-networks https://hpbn.co/primer-on-latency-and-bandwidth/#bandwidth-i... > As o

by vaer-k 6y ago

According to https://hpbn.co/primer-on-latency-and-bandwidth/#bandwidth-in-core-networks https://hpbn.co/primer-on-latency-and-bandwidth/#bandwidth-i... > As of early 2010, researchers have been able to multiplex over 400 wavelengths with the peak capacity of 171 Gbit/s per channel, which translates to over 70 Tbit/s of total bandwidth for a single fiber link! So why/how is 44 Tbps an improvement?

detaro 6y ago
The improvement here seems to be "single chip" source.
vaer-k 6y ago
Ah ok, so according to the article (https://www.nature.com/articles/s41467-020-16265-x.pdf https://www.nature.com/articles/s41467-020-16265-x.pdf), > To dramatically increase bandwidthcapacity, ultrahigh capacity transmission links employ massivelyparallel wavelength division multiplexing and > All of this is driving the need forincreasingly compact, low-cost and energy-efficient solutions and > The ability to supply all wavelengths with a single, compact integrated chip,replacing many parallel lasers, will offer the greatest benefits So it's not really so much news in the sense that existing speeds over fiber have been improved, but instead in the sense that the speed produced by this single chip is a viable compact, low-cost and energy-efficient alternative to many parallel chips