Huawei prototypes 40-Tbps WDM system

March 28, 2013
Last week at OFC/NFOEC, Huawei displayed a prototype system designed to transmit 40 Tbps on a single fiber. The total capacity comes from 20 superchannels within the C-Band, each support 2 Tbps.

Last week at OFC/NFOEC, Huawei displayed a prototype system designed to transmit 40 Tbps on a single fiber. The total capacity comes via 20 superchannels within the C-Band, each supporting 2 Tbps.

The prototype system involves a variety of coherent transmission and encoding technologies. In particular, Huawei points to the use of electrical orthogonal frequency-division multiplexing (eOFDM) and frequency-domain hybrid QAM as pathways towards spectrum efficiency of 10 bps/Hz. The system in Huawei’s both leveraged the company’s Flex-Optical Digital Signal Processing (Flex ODSP) and Hybrid Soft-/Hard-Decision Multi-level Coding (HMLC) to support reaches greater than 1000 km over common singlemode fiber links equipped with EDFAs.

At the same time, Huawei also demonstrated its ability to switch among and/or combine multiple modulation types, including quadrature phase-shift keying (QPSK), 16QAM, 32QAM, and 64QAM.

The new 40-Tbps prototype comes on the heels of a 2-Tbps system Huawei field trialed last year with Vodafone.

For more information on high-speed transmission systems and suppliers, visit the Lightwave Buyer’s Guide.

Sponsored Recommendations

Transforming the metro network and the evolution of the "Digital Service Provider"

March 4, 2025
Join experts at EXFO and Ekinops in this webinar that will review the evolving metro-centric requirements and the technologies emerging to meet them.

Unveiling the Synergy Between AI and Optical Networking

March 12, 2025
Join us for an engaging discussion with industry experts on the intersection of AI and optics. Moderated by Sean Buckley, editor-in-chief of Lightwave+BTR, this panel will explore...

AI and Network Convergence: Transforming Global Connectivity

March 7, 2025
In today’s hyperconnected world, rolling out and managing profitable, high-performance networks for access and transport will require innovative architectural approaches. The ...

On Topic: Fiber - The Rural Equation

Oct. 29, 2024
RURAL BROADBAND:AN OPPORTUNITY AND A CHALLENGE The rural broadband market has always been a challenge for service providers. However, the recent COVID-19 pandemic highlighted ...