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25th March 2013
Fujitsu Laboratories Ltd. and Fujitsu Research and Development Center Co., Ltd. of China have been working on an optical technology that can achieve 100Gbps transmission speeds using commercial components intended for 10Gbps networking. The modulation technique they have adopted is Discrete Multi-Tone (DMT), which is widely used in DSL equipment but is not usually applied to optical systems. Details were presented at OFC/NFOEC in Anaheim, California, in March.