Huawei develops second generation TWDM-PON prototype

Huawei has successfully developed a second generation TWDM-PON prototype to be demonstrated at Europe FTTH COUNCIL in Sweden.

Following the announcement of the world’s first 40G TWDM-PON prototype, Huawei broke a number of technical barriers in this Mark II version, and took a giant leap for large scale deployment of TWDM-PON in the future.

TWDM-PON is the future generation of ultra-broadband PON system (40 or 80G) after GPON and XG-PON, based on stacked XG-PONs with 4 or 8 wavelengths. It allows operators to reuse the existing ODNs, support backward compatibility and smooth migration in broadband access.

However, a number of technical barriers need to be conquered in its future commercial deployment, including colorless ONU transceiver module, integrated transceiver module at OLT, and multi-wavelength management and control protocol.

In TWDM-PON system, the transmitter wavelength and receiver wavelength of the ONU transceiver are both tunable. Hence, the ONU wavelength management and control scheme called G.multi protocol is very important.

With the implementation of G.multi protocol, this new prototype becomes a truly unified PON system that is different from 4 wavelength-stacked XG-PONs, paving the way for TWDM-PON commercialization.

“In the Mark II prototype, Huawei is the first in the whole industry innovatively solving the key issues like tunable SFP+ transceiver for ONUs, integrated transceiver for OLT, ONU wavelength control and management, and etc. It will become one of the milestones of TWDM-PON in the way for final commercialization,” said Dr Frank Effenberger, chief expert in access networks, Huawei.

Huawei’s continued dedications to technical innovation and is focusing on the protection of operators’ network investment, dedicates to build PON solutions with smooth evolution, and is determination to helps operators’ to increase revenue,” added Dr Effenberger.

As the global leader in access networks, Huawei’s SingleFAN solution is currently serving over 1/3 of broadband customers worldwide, providing ultra-broadband services to end users, enriches life through communication.

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