The Optical Networking and Communication
Conference & Exhibition

San Diego Convention Center,
San Diego, California, USA

400G Coherent: What Does it Mean to You?

Thursday, 15 March, 10:15-11:15
Theater II, Hall E
Session organized by Optical Internetworking Forum (OIF)

Session Description

A panel of industry experts representing the breadth of the coherent eco-system will discuss and debate the conflicting demands for a near-term, high-volume, short reach, DWDM 400G optical link.  Power, reach, architecture, etc. are some of the conflicting requirements that will be addressed.  The status of the OIF’s current project to define a 400ZR link specification will also be provided.  A panel discussion including representatives of the DSP, optics, equipment and end user communities will ensure this will be a lively discussion.
Participate in a conversation with the OIF on the vital need for an interoperable 400G Coherent link and gain an update on the project status.


Karl GassKarl Gass, PLL WG Vice Chair Optical, Optical Internetworking Forum (OIF), USA


Sudeep BhojaSudeep Bhoja, Chief Technology Officer, Networking Interconnects, Inphi, USA

Sudeep Bhoja is CTO for Networking Interconnects at Inphi where he is currently developing higher order modulation Coherent & PAM based physical layer products. He has worked on applied DSP, communications and Forward Error Correction in silicon PHYs for the last 20 years. Previously, he was Technical Director in the Infrastructure and Networking Group at Broadcom where he designed 10G DSP transceiver interconnect solutions. He was Chief Architect at Big Bear Networks and also held R&D positions at Lucent Technologies and Texas Instruments. He is the named inventor of over 30 pending and approved patents in networking interconnects, has an M.S. in Electrical Engineering from Purdue University, West Lafayette, IN, USA.

TAd HofmeisterTad Hofmeister, Network Architect, Google; Board Member, OIF , USA

Tad Hofmeister has been a Network Architect at Google since 2011, helping to scale and optimize Google's production optical networks. He supports long haul, metro, and campus network design and short reach device interconnects. Prior to Google, Tad was an architect, system engineer, and hardware designer for several optical transport and packet processing companies including: Ciena, Matisse Networks, OpVista, and Applied Signal Technology. Tad earned MS and Ph.D. degrees in EE from Stanford University and BS degrees from Columbia University and Bates College.

Winston WayWinston WayCTO, Systems, NEOPhotonics Corp, USA

Winston I. Way is the CTO, Systems, at NeoPhotonics Corporation. His current responsibility is to research and develop next-generation line/client optical transceivers (based on coherent or direct-detection higher-order-modulation formats) and ROADM architecture, all using photonic integrated circuits. He pioneered subcarrier multiplexed optical-fiber systems research at Bellcore, and was a professor at National Chiao-Tung University, Taiwan. He founded OpVista Inc. in 2000, developed and deployed DWDM system products in major MSO networks in North America. He joined NeoPhotonics in 2009. He has published over 130 journal and conference papers, and owns more than 30 US patents. He received his Ph.D. from the University of Pennsylvania. He is a Fellow of the IEEE and the Optical Society of America.

Tom WilliamsTom Williams, Senior Director of Marketing, Acacia Communications, USA

Tom Williams is Senior Director of Marketing at Acacia Communications. Prior to Acacia, Tom spent 14 years at Optium and Finisar Corporations, where he held various management roles, including Director of Product Line Management for high speed (>100G) transmission products. Tom has also held positions at Lucent Technologies and Northrop Grumman Corporation. He has an MS in Electrical Engineering from Johns Hopkins University and BS degrees in Electrical Engineering and Physics from Widener University.


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