Title: Designing an Optical Internet Router with a Preview of an Optical Turing Machine for Network Processing Abstract: This talk presents a design for an optical router based on decomposing the steps required for IP packet forwarding. Previous implementations of hopcount decrement and header matching are integrated with a recent simulation-based approach to variable-length packet merging that avoids recirculation, resulting in an all-optical data plane. A method for IPv4 checksum computation is introduced, and the implications of this design are considered, including the potential for chip and system integration. These components are extended from binary to higher-density (multiple bits per symbol) encodings, which led to our new Optical Turing Machine (OTM) project. OTM explores the unification of communication and computation through a new approach to digital optics to enable network processing of a high-density modulation format capable of high-speed, long-distance transmission.