Intelligent Wavelength Assignment for High-Speed Data Center Optical Networks
Keywords:
optical data center networks; wavelength assignment; intelligent control; routing and wavelength assignment; optical switching; sustainability; governance; machine learningAbstract
High-speed data center optical networks are increasingly expected to support extreme bandwidth, predictable latency, strict tenant isolation, and sustainable energy use under rapidly changing traffic conditions. Wavelength assignment is often treated as a narrow routing and resource allocation problem, yet in modern data centers it functions as a system-level governance mechanism that shapes capacity distribution, failure recovery, energy consumption, and fairness among workloads. This paper examines intelligent wavelength assignment as an architectural and socio-technical capability rather than a purely algorithmic task. It argues that effective wavelength assignment must coordinate optical switching, electronic packet routing, telemetry, control-plane policy, and physical-layer constraints. The discussion considers reconfigurable optical interconnects, hybrid electrical and optical fabrics, learning-based control, low-margin optical design, and hollow-core fiber based low-latency interconnects. It also analyzes trade-offs among capacity, latency, energy, robustness, fairness, and deployment cost. Particular attention is given to governance implications, including tenant service guarantees, carbon-aware scheduling, infrastructure modularity, and cross-domain lessons from telecommunications and high-performance computing. The paper concludes that intelligent wavelength assignment should be designed as a policy-aware, observable, and resilient control layer that balances technical efficiency with operational legitimacy. Such a layer can improve utilization and reduce energy waste, but only if it remains transparent, auditable, and adaptable to heterogeneous data center environments.
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