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Friday, June 07, 2013
ZTE Transmits 400Gbps Signal Over Distance Of 5,000 km

ZTE completed data signaling at speeds of 400 Gigabits per second over a distance of more than 5,000km, setting a benchmark for the global optical networking industry.

The data transmission was achieved on a WDM system with 100Ghz channel spacing. Data was transmitted through 25 ROADM nodes without electrical repeater. ZTE claims that the communications capacity of its system is double that of the most advanced systems currently available in the industry.

ZTE used a unique frequency algorithm to overcome the issue of signal degradation, a common industry challenge in wideband communications over long-distance.

The long-distance transmission capability of a high-speed signal is a key component in the development speed of communications and services on a network. Because of this, 100G and 400G technologies are becoming key components of the world?s telecommunications industry infrastructure.

ZTE has long been dedicated to research of 100G and 400G/1T high-speed transmission solutions for many years. In February 2011, ZTE became the first company to transmit a single-channel 11.2Tbit/s optical signal. It also completed a 641-km transmission at 1Tb/s in standard single-mode fiber, a new world record at the time. In July 2011, ZTE became the first in the industry to complete a 24Tb/s WDM signal transmission.

In February 2012, ZTE and Deutsche Telekom successfully completed a 2,450-km long-distance hybrid transmission of 100G/400G/1T signal in Germany. ZTE also used its patented technology to implement what was then a world-record 2,800-km long--haul 400G transmission without electrical repeater in September 2012.

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