NTT, NEC, Fujitsu will jointly developed 400Gbps optical transmission technology
On December 12th, NTT, NEC and Fujitsu released in December 11th will be jointly developed the world’s highest level of data transmission of optical transmission technology, single channel ( channel ) transmission rate is expected to reach 400Gbps, scheduled for 2014 in the completion of development.
NTT points out, network and intelligent mobile phone popularity caused communication data quantity explosive growth, although there are now 100Gbps business network, but the world is moving towards the age of big data, predict before long in the future intelligent network ( M2M ) is more popular, there will be more diverse digital data to ask the world, the speed of network and service will be asking for more, faster, more power-saving research, network structure with stronger light transmission technology has been crunch time, therefore the past cooperation NEC, Fujitsu to accept the Ministry commissioned, before using a development of the 100Gbps optical transmission technology experience for solving above problems and development direction of.
The 3 predetermined by agency of research methods, the 100Gbps optical transmission technique using 4 phase shift modulation ( QuadraturePhase-Shift-Keying ) technology to strengthen the 16 quadrature amplitude modulation ( QuadratureAmplitudeModulation ), so as to realize single channel 400Gbps optical transmission technology, if used in the high density of 60 channel optical fiber, then the future only by a fiber can 24Tbps data transmission level.
Energy saving research, as long as it can complete the fibers in the non-linear optical effects, wavelength dispersion, partial wave mode dispersion compensation technology, can be transmitted over long distances, so not only can subtract relay equipment to achieve energy saving 50% of the target, but also due to transmission path condition in the same hardware for performing many kinds of signal modulation mode, so. The network structure as long as the use of a core technology can correspond to different areas of demand, coping and adaptability will be stronger.
