Switching Node: Advancing Open Optical Networking with ROADM Architectures

In the realm of open optical networking, innovation drives transformation. The Allegro project explores cutting-edge technologies, and one key enabler is the Switching Node, leveraging the most advanced ROADM (Reconfigurable Optical Add-Drop Multiplexer) architectures.
📡 Why it matters
Current CDC (Colorless, Directionless, Contentionless) ROADM solutions are future-proof designs tailored for open optical networking in C-band scenarios. These architectures, combined with standardized APIs and southbound interfaces based on YANG, seamlessly integrate into SDN-based environments, enabling unparalleled flexibility and control.
🔧 Technical Highlights
The fundamental ROADM line unit is a powerhouse of functionality, merging two essential sub-units:
1️⃣ EDFA Sub-Unit: Equipped with power line amplifiers featuring variable and switchable gains.
2️⃣ Monitoring & Routing Sub-Unit: Incorporates optical power monitors, optical channel monitoring (OCM) for spectrum equalization, and twin-configured high-resolution flexi-grid WSS modules. These support 2×P degree spectral demarcation, routing, and add/drop capabilities, scaling up to 20-32 ports.
🚀 Pioneering the Future
This advanced architecture underscores Allegro’s commitment to delivering robust, scalable, and adaptable solutions for next-generation optical networking. With such innovations, we are charting the course for a more connected and efficient digital future.
🔗 Stay tuned for more updates on the Allegro project!
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