Written by Fujitsu
Fujitsu Limited and KDDI Research today announced that they have successfully developed a large-capacity multiband wavelength multiplexing transmission technology using installed optical fibers.
The two companies have developed a technology that enables transmission of wavelength bands other than the C band, which has not been used in medium- and long-distance commercial optical communications, using a batch wavelength conversion and multiband amplification technology. The optical fiber communications network introduced with this technology enables wavelength transmission at 5.2 times the wavelength multiplicity of current commercial optical transmission technology. This enables the use of installed optical fiber facilities to increase communication traffic in a cost-effective and labor-efficient manner. The technology makes it easier to expand the transmission capacity in urban areas and densely populated residential areas where installation can prove challenging, and offers the potential to significantly reduce the time required to start the service and reduce costs.
The development was undertaken as part of the ”Research and Development Project of the Enhanced Infrastructures for Post-5G Information and Communication Systems” commissioned by Japan’s New Energy and Industrial Technology Development Organization (NEDO).
