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 3^rd 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.