CST Global proves the feasibility of its uncooled, ridge waveguide, 25Gbps, CWDM, DFB lasers.


13 March 2018

CST Global has successfully proven the feasibility of its uncooled, ridge waveguide, CWDM, DFB lasers to transmit at 25Gbps. The feasibility comes as part of the company’s involvement in the government-funded, SUPER 8, research project.

Euan Livingston, VP Sales and Marketing at CST Global, explains, “The SUPER 8 project uses CWDM (Coarse Wavelength Division Multiplexing) architecture to provide optical filtering, so that eight, 25Gbps data channels, each with its own laser, can be transmitted simultaneously, at different wavelengths, on the same optical fibre. The uncooled, ridge waveguide, DFB lasers we have made, and successfully tested, form part of a low-cost solution with reduced power and increased reliability over existing, DWDM technology.

“The feasibility shows that a 200Gbps, ultra-high-speed, data communications platform for use by hyper-scale, cloud data centres, is now proven. High capacity networks of this type, with greater transmission rates and a lower cost base, will also be essential to cloud services, video-on-demand and IoT markets. It clearly shows that the CWDM, DFB lasers being developed within the SUPER 8 project are on track for full commercialization.”

The SUPER8 project fund totals £1.1m, of which CST Global will receive £318,039 altogether. The project consortium partners include CST Global; Compound Semiconductor Centre CSC, based in Cardiff; and Kaiam of Livingston.

CST Global is a wholly-owned subsidiary of Sivers IMA Holdings AB.

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