The Dual Horizon: A Rendezvous of Computing and Communication Services at the Optical Layer in Optical Computing-Communication Integrated Network
Dao Thanh Hai, Isaac Woungang

TL;DR
This paper proposes an innovative optical computing-communication integrated network that combines computing and communication at the optical layer, enabling efficient in-network processing for distributed machine learning and demonstrating significant spectral efficiency improvements.
Contribution
It introduces a new paradigm for optical node architecture that leverages interference for computation, extending routing and wavelength assignment to include computing tasks.
Findings
Spectral efficiency gains demonstrated in simulations.
Effective in-network optical computing for distributed learning.
New routing, wavelength, and computing assignment problem formulated.
Abstract
With the significant advancements in optical computing platforms recently capable of performing various primitive operations, a seamless integration of optical computing into very fabric of optical communication links is envisioned, paving the way for the advent of \textit{optical computing-communication integrated network}, which provides computing services at the ligthpath scale, alongside the traditional high-capacity communication ones. This necessitates a paradigm shift in optical node architecture, moving away from the conventional optical-bypass design that avoids lightpath interference crossing the same node, toward leveraging such interference for computation. Such new computing capability at the optical layer appears to be a good match with the growing needs of geo-distributed machine learning, where the training of large-scale models and datasets spans geographically diverse…
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Taxonomy
TopicsAdvanced Optical Network Technologies · Optical Network Technologies · Advanced Photonic Communication Systems
