Design Challenges Of High-Speed Wireline Transmitters


By Samad Parekh and Noman Hai The need for higher bandwidth networking equipment as well as connectivity in the cloud and hyperscale data centers is driving the switch technology transition from 25T (terabytes) to 50T and soon to 100T. The industry has chosen Ethernet to drive the switch market, using 112G SerDes technology today and next generation architectures being designed to operate at... » read more

Power/Performance Bits: June 22


Terahertz silicon multiplexer Researchers from Osaka University and University of Adelaide designed a silicon multiplexer for terahertz-range communications in the 300-GHz band. “In order to control the great spectral bandwidth of terahertz waves, a multiplexer, which is used to split and join signals, is critical for dividing the information into manageable chunks that can be more easily... » read more

Photonics Moves Closer To Chip


Silicon photonics is resurfacing after more than a decade in the shadows, driven by demands to move larger quantities of data faster, using extremely low power and with minimal heat. Until recently, much of the attention in photonics focused on moving data between servers and storage. Now there is growing interest at the PCB level and in heterogeneous multi-chip packages. Government, academi... » read more