抄録
With the continuous growth of data traffi c in the communication networks and datacenters, the energy
consumption at the electric packet switches and routers is becoming the bottleneck in scaling up the data
capacity. Optical switching has been considered as the key technology to achieve drastic energy saving
by bypassing the power-consuming electric packet forwarding. In this article, we review the present
status of the high-speed, large-scale photonic integrated switches using InP-based compound
semiconductor materials. Recent trends and progresses in the wavelength-converting switches and
semiconductor optical amplifi er switches are presented. We then review our work on integrated phasedarray
switches and discuss their potentials as well as challenges.
