The Optical Networking and Communication
Conference & Exhibition

San Diego Convention Center,
San Diego, California, USA

OIF - 400ZR Specification Update

Thursday, 7 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


Josef Berger, Inphi, USA
Mark Filer, Principal Optical Network Architect, Microsoft Azure, USA
Marc Stiller, VP of Business Development, NeoPhotonics, USA
Markus Weber, DSP Product Line Manager, Acacia Communications, USA


Josef Berger, Inphi, USA


Mark Filer, Principal Optical Network Architect, Microsoft Azure, Redmond, USA
Mark is currently Principal Optical Network Architect at Microsoft where he is focused on metro DCI, long-haul, and subsea optical solutions and next-generation data center architectures. Prior to that, he spent 14 years in optical R&D at ADVA Optical Networking in Atlanta, GA. He has published research in the areas of cloud-scale open line systems, long-haul transmission, ROADM network architectures, and system impairments. He holds B.Sc. and M.Sc. degrees in electrical engineering from the Georgia Institute of Technology in Atlanta, GA.


Marc Stiller, VP of Business Development, NeoPhotonic, USA

Marc Stiller is currently VP of Business Development at NeoPhotonics where he has held roles in product management, marketing and operations.  Prior to Joining NeoPhotonics, Marc managed product marketing at Lightwave Microsystems, and spent more than 10 years in R&D in fiber optics materials and components development.



Markus Weber, DSP Product Line Manager, Acacia Communications, USA

Markus Weber studied Computer Science at the Technical University in Kaiserslautern focusing on computer architectures and semiconductors. After working for VLSI Technology and Siemens Semiconductor, Markus joined Fujitsu Microelectronics in the ASIC department. In the following years he participated in the design of high end Ethernet and  OTN devices.

Based on this activity Fujitsu started a dedicated network business unit first focusing on SDH and OTN standard products, but then changing to pioneer coherent devices. Markus headed the activity, then was in charge of global marketing and business development of the BU. Since early 2016 he changed position to become DSP Product Line Manager at Acacia Communications, a company focusing on coherent optical modules.

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