Tencent works with Acacia for 200G IP over DWDM

Tencent uses Acacia's modules on third-party switches for demonstration of 200G IP over DWDM. (Pixabay)

Tencent announced today that it has completed an 80-km fiber transmission of multiple 200G 8QAM signals using Acacia's modules on third-party switches.

The signals were sent over Tencent's OPC-4 open line system (OLS) using Acacia Communications’ CFP2-DCO modules.

In order to simulate higher fiber loss in its metro networks, Tencent added 10dB optical attenuators to the tested link, and was still able to achieve error-free operation in all the ports. OPC-4, which was developed by Tencent, meets its software-defined networking (SDN) requirements for a disaggregated transport network, and is fully integrated into the company’s network controller.


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Tencent said that the lab demonstration validates the deployment readiness of its IP over dense wavelength division multiplexing (DWDM) solution using OPC-4 in its metro data center interconnect (DCI) networks.

The demonstration used Acacia’s CFP2-DCO modules with 50GHz channel spacing and 200G 8QAM modulation, which also showed the ability to support transmission of up to 19.2T on a single fiber using Tencent’s 96-channel OPC-4 and Acacia’s CFP2-DCO modules.

RELATED: Optical transport WDM equipment market grew 15% in Q3

The demonstration highlighted the value of IP over DWDM and disaggregated solutions to cost-effectively meet the growing bandwidth needs of Tencent’s metro DCI infrastructure, the companies said.

"With Acacia’s 200G CFP2-DCO, our switch platform can support eight ports, for up to 1.6T per line card and our OPC-4 can support transmission of up to 19.2T over a single fiber for metro DCI applications," said Tencent's Jengyi Geng, senior network architect in a statement. "In addition, the CFP2-DCO form factor provides us with a pay-as-you-grow deployment model."

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