We have seen a significant increase in bandwidth demands in the data center networks. Lowering power while increasing capacity is required. Here, we focus on the development of advanced multiplexing techniqueadvanced modulation format on silicon photonics, known as mode-division-multiplexing4-level pulse-amplitude-modulation, to increase the capacity  Terabit/s.

To increase the transmission capacity, traditionally, time-division-multiplexing (TDM)wavelength-division-multiplexing (WDM) are used. Here, we proposedemonstrate using mode-division-multiplexing (MDM) in silicon photonic chips. Related research works have been published in first tier photonics SCI international journals, illustrating our leading position.

The bandwidth demand is increasing rapidly recently. Operating data centers are becoming moremore expensive. This research develops silicon photonics technologies, using all-optical schemes to increase the transmission capacity to  Terabit/s. These technologies could be possible to replace the existing technologies used in the present data center networks.