ZTE claims new optical fibre benchmark for speed over distance Telecoms equipment maker, ZTE Corporation announced that it completed data signalling at speeds of 400 Gbps over a distance of more than 5000 km, setting a benchmark for the global optical networking industry. The industry first data transmission was achieved on a wavelength-division multiplexing (WDM) system with 100 Ghz channel spacing. Data was transmitted through 25 reconfigurable optical add-drop multiplexer (ROADM) nodes without an electrical repeater. ZTE said it used a unique frequency algorithm to overcome the issue of signal degradation, a common industry challenge in wideband communications over long distance. The success of this transmission laid the technical foundation for further development of global high-speed broadband networks. With the growth of global broadband services, high-bandwidth transmissions have become a basic requirement for communication networks. 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 been researching 100G and 400G/1T high-speed transmission solutions for many years, resulting in a variety of products and applications. In 2011, it became the world’s first company to transmit a single-channel 11.2 Tbps optical signal. It also completed a 641 km transmission at 1 Tbps in standard single-mode fibre, a new world record at the time. In 2011, ZTE became the first in the industry to complete a 24 Tbps (24 x 1.3 Tbps) WDM signal transmission. In February 2012, ZTE and Deutsche Telekom successfully completed a 2450-km long-distance hybrid transmission of 100G/400G/1T signal in Germany. In September 2012, ZTE implemented what was then a world-record 2800-km long-haul 400G transmission without an electrical repeater. This article was published 7 June 2013 by DatacenterDynamics, who has granted BICSI South Pacific permission to publish it for its membership. BICSI and DatacenterDynamics (datacenterdynamics) enjoy a close working relationship globally, sharing information on IT and datacentre industry issues with our respective audiences.
Posted on: Mon, 17 Jun 2013 21:20:20 +0000