A team of researchers from Australia have recorded internet speeds of 44.2
Terabits per second;the fastest ever internet connection yet
[https://www.monash.edu/news/articles/australian-researchers-record-worlds-fastest-internet-speed-from-a-single-optical-chip] , all from a single optical chip.

You probably won?t even have enough time to imagine how many movies you can
download in a second with this speed before a 1000 movies are downloaded, that
too in high definition!

The researchers from Monash, Swinburne and RMIT Universities have developed a
special optical chip called micro-combs. The micro-comb chips are able to emit
up of hundreds of high-quality infrared lasers along with the same transmission
like a rainbow, where each ?laser? is a separate communications channel.

A single micro-comb, with its ability to carry multiple signals at once, is able
to replace up to 80 infrared laser sources that are being used in existing
telecommunications systems. Additionally, it is smaller and lighter than
existing hardware too.

In theirpaper [https://www.nature.com/articles/s41467-020-16265-x]published in
the journal,Nature Communicationsresearchers load-tested the chip on an internet
infrastructure that was installed in Melbourne with hardware similar to the
National Broadband Network (NBN). The researchers installed 76.6km of ?dark?
optical fibres between RMIT?s Melbourne City Campus and Monash University?s
Clayton Campus and placed the micro-comb chips within the optical fibre line.

They were able to produce the highest amount of data from a single micro-comb
optical chip the has been used in a field trial.

The optical chip optimized fibre network even had an optimum speed of 44.2 Tbps
which according to Distinguished Professor Arnan Mitchell from RMIT University
shows the potential of existing Australian internet infrastructure to provide
speeds of terabytes per second without an increase in size, weight or cost. He
adds
[https://www.monash.edu/news/articles/australian-researchers-record-worlds-fastest-internet-speed-from-a-single-optical-chip] , ?Long-term, we hope to create integrated photonic chips that could enable this
sort of data rate to be achieved across existing optical fibre links with
minimal cost.?

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