ZTE Corporation (0763.HK \/ 000063.SZ), a major international provider of telecommunications, enterprise and consumer technology solutions for the Mobile Internet, announced that it has demonstrated a record-breaking single-carrier 800G long-haul high-speed transmission result, successfully transmitting 120-Gbaud wavelength-division multiplexing (WDM) 16QAM signals over 1,200-kilometre terrestrial fibre links. This is the first experiment with the highest symbol rate reported so far for electrical time division multiplexing (ETDM)-based 16QAM signals. The result, once again, sets a benchmark for the global optical networking industry, boosting further development of new technologies and supporting the next-generation transport standard to cope with the exponential growth of IP traffic.<\/p>\n
The successful test demonstrated the generation and WDM transmission of the highest baud rate single-carrier 120-Gbaud electronic time-division multiplexing (ETDM) polarisation-division multiplexing (PDM)-16QAM optical signals. Both transmitter-side, and optical pre-emphasis and receiver-side maximum likelihood sequence estimation (MLSE) are utilised to mitigate the narrow filtering effect caused by bandwidth limitation of the opto-electronic components. Twelve WDM channels at 150-GHz grid, each loaded with 960-Gb\/s (800 Gb\/s data signals & 20 percent forward error correction (FEC) emulated overhead bits) over 1,200km link based on the 100km-spans of TeraWaveTM optical fibre are demonstrated. The achieved data rate interface ensured spectral efficiency of 5.33b\/s\/Hz. <\/p>\n
Dr. Jianjun Yu, the Chief Scientist at ZTE US Optical Lab and Fellow at The Optical Society (OSA), said: \u201cThanks to the high baud rate signals generation, transport interfaces with bit-rates of up to 1Tb\/s will be achieved in the near future. We can expect that bit rates beyond 1Tb\/s, such as 1.6Tb\/s, will be introduced as Ethernet standard rates since it would be a logical upward path rate from the 400Gb Ethernet interface, which is based on high baud rate signals and high order modulation formats. ZTE has been relentless in pushing forward-looking research and development on the single carrier 400G transmissions and beyond, and we have key technologies for future Tb\/s solutions.\u201d <\/p>\n
ZTE has long been committed to R&D in 400G\/1T (and beyond) technologies, as well as their applications and has already provided several key innovations in this field. In 2013, ZTE completed data signaling at speeds of 400Gb\/s over a distance of more than 5,000km, through 25 reconfigurable optical add-drop multiplexer (ROADM) nodes without electrical repeater. In 2014, ZTE achieved 20 dense wavelength division multiplexing (DWDM) channels of 400Gb\/s single-carrier polarisation-division multiplexing-quadrature phase shift keying (PDM-QPSK) signals to successfully transmit to 3,600km in standard single-mode fibre when the spectrum efficiency is improved to 4b\/s\/Hz. In 2015, ZTE US Optical Lab collaborated with OFS America to realise a 400Gb\/s single-carrier PDM-QPSK signal transmission over 10,000km, a world record for 400Gb\/s transmission. In January 2016, together with T-Mobile Austria, a top-level telecom operator in Austria, ZTE successfully completed a 10G\/100G\/400G hybrid transmission test on existing networks, indicating that 400G optical transport networks (OTNs) had become available for complex long haul applications.<\/p>\n","protected":false},"excerpt":{"rendered":"
ZTE Corporation (0763.HK \/ 000063.SZ), a major international provider of telecommunications, enterprise and consumer technology solutions for the Mobile Internet, announced that it has demonstrated a record-breaking single-carrier 800G long-haul high-speed transmission result, successfully transmitting 120-Gbaud wavelength-division multiplexing (WDM) 16QAM … Read More<\/a><\/span><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[2098,240],"class_list":["post-5899","post","type-post","status-publish","format-standard","hentry","tag-dr-jianjun-yu","tag-zte-corporation"],"_links":{"self":[{"href":"https:\/\/www.telecomstalk.com\/index.php?rest_route=\/wp\/v2\/posts\/5899","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.telecomstalk.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.telecomstalk.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.telecomstalk.com\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.telecomstalk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5899"}],"version-history":[{"count":3,"href":"https:\/\/www.telecomstalk.com\/index.php?rest_route=\/wp\/v2\/posts\/5899\/revisions"}],"predecessor-version":[{"id":5902,"href":"https:\/\/www.telecomstalk.com\/index.php?rest_route=\/wp\/v2\/posts\/5899\/revisions\/5902"}],"wp:attachment":[{"href":"https:\/\/www.telecomstalk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5899"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.telecomstalk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5899"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.telecomstalk.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5899"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}