Toward exa-scale photonic switch system for the future datacenter (invited paper)

This paper reviews various optical switch technologies, then discusses how to realize an optical circuit switching interconnect capable of more than 10 Tbps link bandwidth and more than 100,000 end points scalability for data centers or high performance computers. Introducing the wavelength division multiplexing transmission technology and a simple distributed-like control scheme of optical switches is proposed, with the associated challenges discussed.