SHENZHEN, China -- Huawei, a leading global information and communications technology (ICT) solutions provider, today unveiled its new WDM prototype, improving upon the current mainstream commercial products that use a 50GHz fixed spectrum interval. Boasting the highest spectrum efficiency among WDM products currently available, Huawei’s WDM prototype features a flexible spectrum interval with a minimum granularity of 12.5GHz, which not only increases the spectrum utilization and flexibility of the WDM system, but also lays a solid foundation for multi-carrier technologies and next-generation bandwidth-flexible optical networks beyond 100G. This highly efficient spectrum technology will enable carriers to build WDM networks that meet future needs.
The popularity of broadband services has triggered a rapid increase in transmission capacity and a drive towards 100G networks. Technologies beyond 100G WDM have now become the next research hotspots, with multi-carrier technology acknowledged as the solution for 400G and 1T transmissions. All current mainstream WDM systems are based on a 50GHz or 25GHz spectrum interval, as spectrum utilization is insufficient for 400G and 1T multi-carrier transmissions. The highly efficient WDM prototype developed by Huawei increases the spectrum utilization for large-capacity WDM systems. This compact spectrum solution will make the high-speed signals of the multi-carrier slimmer, ensuring the fiber is able to transfer signals more effectively.
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