ZTE completes Flex Coherent DWDM Transmission Framework for OIF

Via ZTE Press Center

Oct 30, 2017

30 October 2017, Shenzhen, China – ZTE Corporation (0763.HK / 000063.SZ), a major international provider of telecommunications, enterprise and consumer technology solutions for the Mobile Internet, proposed and edited the Flex Coherent DWDM Transmission Framework. It was approved unanimously at the 3rd quarterly meeting of Optical Internetworking Forum (OIF) in Halifax, Canada, and has been released officially.

The Flex Coherent framework confirms three optical network application scenarios: long-haul, metro and data center interconnection (DCI), identifying the functional architecture and building blocks of a Flex Coherent optical transceiver module to support all the above Beyond-100G applications.

The framework suggests flexible net rates, modulation schemes and channel bandwidths supported by one single optical carrier, and also recommends optical carrier aggregation for long-distance Super-channel transmission.

“This framework once again unites the industry around to select one technical approach for Beyond-100G optical transmission. Like the successful 100G consensus reached in 2009, this would help the industry to form a Beyond-100G optical transmission ecosystem.”said Dr. Hungchang Chien of ZTE Optics Labs, USA, the technical editor of this Flex Coherent framework document.

ZTE has long been committed to the R&D of Beyond-100G optical transmission with a number of key technology patents and innovative achievements. In 2016, ZTE successfully transmitted 800G single-carrier 120GBaud PDM-16QAM wavelength division signals on Terawave fiber over 1,200 km. Later in 2017, ZTE realized the transmission of 84GBaud PDM-8QAM wavelength division signals on standard single-mode fiber (SSMF) over 2,125km. In 2017, ZTE achieved the transmission of 34GBaud single-carrier PM-256QAM signals on SSMF over 80km in an experiment, verifying that the probabilistic shaping can highly improve the transmission performance of 400G 256QAM.

As a pioneer in Beyond-100G technology, ZTE has been creating new 400G single-carrier transmission records to lay a solid foundation for researches on single-carrier higher-rate optical transmission technologies.

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