This project will develop an implementation agreement for 400G ZR and short-reach DWDM multi-vendor interoperability.  It is relevant for router-to-router interconnect use cases and is targeted at (passive) single channel and amplified DWDM applications with distances up to 120 km. This project should ensure a cost-effective and long-term relevant implementation using single-carrier 400G, coherent detection and advanced DSP/FEC algorithms.

Press Release


Upcoming Speaking

  • OFC 2019 – March 7, 2019 at 10:15am
    OIF Panel on Showfloor: “400ZR Specification Update
    Moderator: Karl Gass, OIF PLL WG Vice Chair, Optical
    Panelists: Josef Berger, Inphi; Mark Filer, Microsoft; Mark Stiller, NeoPhotonics; Marcus Weber, Acacia Communications

Past Speaking

  • OFC 2018

For more information, contact Karl Gass, Physical and Link Layer Working Group, Optical Vice Chair at

For information on other OIF current projects, please see OIF Current Work

For public OIF Implementation Agreements, please see Implementation Agreements (IAs)