Chinese mobile maker ZTE Corporation announced that it has conducted an industry first field demonstration of a 8×216.4Gb/s WDM transmission through a 50GHz optical spectrum grid resulting in breaking the speed barrier of 1.7Tbps data transmission with field test. The demonstration utilized patented ZTE high-frequency technology to accomplish a 200Gb/s polarization multiplexing QPSK signal transmission at 50GHz through 1,750km of standard single model fiber optic cable. The experiment proves a seamless upgrade from a 100G transmission system to a 200G system is possible. This resulted in a 25 per cent increase in spectrum efficiency and an increase in transmission efficiency.
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