State research institute develops optical communications tech to double data transfer speed

Park Sae-jin Reporter() | Posted : November 26, 2019, 15:17 | Updated : November 26, 2019, 15:17

[Courtesy of ETRI]

SEOUL -- South Korean state-funded research institute has developed a new optical communications technology that can transfer data in lightning speed by using a small-sized optical transceiver and solve data traffic congestion in 5G networks.

The Electronics and Telecommunications Research Institute (ETRI), a state research body, said in a statement on Tuesday that it has developed a new optical data transferring technology. It would take about four seconds to transfer an ultra-high-definition 4K film which is about 100 gigabytes.

By adopting a four-stage high-order modulation method that can send two bits at a time, instead of the conventional two-stage modulation method that sends one bit, the new technology sends and receives twice as much data than conventional methods. The transceiver allows the transfer of 200 gigabits per second data between telecom nodes to other local networks as far away as 80 kilometers (49 miles).

"This is a key technology for high speed and high capacity optical connection," ETRI's network research director Kim Sun-mi was quoted as saying. ETRI said that it would develop a super-speed optical data transmitter-receiver capable of 400 gigabits per second to speed up data transfer in communications networks inside the two-kilometer-radius of data centers.
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