Intelligent Optical Core Router

Intelligent optical core routers integrate coherent optics, multi-layer control, and IPoDWDM to optimize network performance, scalability, and operational efficiency.

Overview

Modern intelligent optical core routers combine high-performance IP routing with integrated coherent optical capabilities, enabling direct mapping of IP traffic onto DWDM wavelengths. This approach, often referred to as coherent routing, eliminates the need for standalone transponders and multiple Optical–Electrical–Optical (OEO) conversions, reducing latency, power consumption, and operational complexity while supporting high-bandwidth applications such as data center interconnects, metro aggregation, and long-haul transport.

Key Features

Coherent Pluggable Optics: Routers use pluggable 400G coherent optics (e.g., 400ZR and 400ZR+) that can be deployed directly in router ports, supporting distances from 40 km up to several hundred kilometers without additional transponders. Future generations are expected to scale to 800G speeds. IPoDWDM Integration: IP over DWDM (IPoDWDM) allows high-speed IP interfaces to generate DWDM wavelengths natively, collapsing multiple transport layers into a simplified architecture and enabling dynamic bandwidth scaling.

Multi-

Layer Intelligence: Intelligent routers monitor both packet-layer metrics (latency, congestion) and optical-layer parameters (signal quality, reach constraints), allowing dynamic traffic engineering and adaptive network optimization. Energy and Space Efficiency: By embedding coherent optics directly in routers, these systems reduce the number of intermediate devices, lower power and cooling requirements, and improve sustainability for large-scale networks. Automation and Telemetry: Modern intelligent optical routers support network automation frameworks and streaming telemetry, enabling faster service activation, improved visibility, and efficient fault isolation.

Applications

Data Center Interconnect (DCI): Point-to-point or multi-span connections using 400G coherent optics for high-capacity, low-latency links between data centers. Metro and Regional Networks: Aggregation of hub-and-spoke traffic with flexible optical pass-throughs and ROADM integration.

Long-

Haul Transport: High-performance coherent optics extend optical reach to thousands of kilometers, supporting backbone networks and intercontinental links.

Benefits

Simplified network design and reduced operational complexity. Lower total cost of ownership through fewer devices and reduced energy consumption. Enhanced scalability and flexibility for AI-driven, cloud, and 5G network demands.

End-to-end visibility and control across IP and optical layers, enabling intelligent traffic management and improved service reliability. Intelligent optical core routers represent a converged IP-optical architecture that is essential for modern high-capacity networks, providing both performance and operational intelligence to meet the demands of data-intensive applications.