Features a flexible spectrum interval with a minimum granularity of 12.5GHz
Information and communications technology (ICT) applications provider Huawei has introduced new WDM prototype, improving current mainstream commercial products that use a 50GHz fixed spectrum interval.
Huawei’s WDM prototype features a flexible spectrum interval with a minimum granularity of 12.5GHz, which increases the spectrum utilisation and flexibility of the WDM system, enabling carriers to build WDM networks.
The 12.5GHz granularity enables flexibility in the adjustment of bandwidth, distance, and frequency width, freeing up the available spectrum to transmit services, said the company.
The new prototype increases the spectrum utilisation for large-capacity WDM systems and also makes the high-speed signals of the multi-carrier slimmer, ensuring the fibre is effectively able to transfer signals.
The compact spectrum service supports 40G, 100G, 400G, 1T hybrid transmissions and is compatible with the 50GHz or 25GHz spectrum interval legacy systems. It provides smooth evolution from 40G and 100G systems to 400G and 1T systems, protecting investment on current networks.
Huawei’s WDM prototype is one of the core technologies of next-generation bandwidth-flexible optical networks.
The signal of next-generation bandwidth-flexible optical networks allows for automatic adjustment of the modulation mode and line rate based on the transmission distance and service capacity, constantly changing the frequency width utilisation.