Kenneth Jackson, Sumitomo Electric Device Innovations, USA; Argishti Nelikyan, Nokia Bell Labs, USA; Hongbin Zhang. Acacia Communications, USA
Ever increasing demands for network bandwidth are driving the need for optical interconnects with higher data-throughputs. Early on the speed of the optical interconnects were much faster than the capabilities of the electronics feeding them. More recently, limitations in these optical interconnects has forced designers to be more creative, utilizing higher symbol rates, higher order modulation formats, space or wavelength division multiplexing schemes to achieve higher optical interconnect throughputs. Currently, with the availability of high-speed CMOS electronics, a more economical path towards higher interconnect throughputs is to increase the symbol rates. This has driven the need for optical components with wider bandwidths.
Today’s commercially deployed components, with speeds of in the range of 60GBaud, are adequate for 400Gb/s networks. But what about for 800Gb/s systems and beyond? Can the bandwidth and the efficiency of optical components be further enhanced to enable such systems? Is the analog electronics capable of supporting such bandwidths? And, what is the impact to the DSP design considering the limitation of bandwidth and ENOB when the symbol rate reaches 130 GBaud and beyond?
This panel will explore the technologies available to enable such high bandwidth optical interconnects. From transmitters to receivers, this panel will examine today’s technologies and limitations and consider what options designers have for future 800Gb/s and higher network deployments.