In optical networking, the transport system consists of transparent WDM light paths (LPs) that need to be optimized across the network topology. A key challenge in modeling these paths is accounting for signal impairments caused by nonlinear fiber effects, amplified spontaneous emission (ASE) noise, and crosstalk (XT).
To simplify this complex problem, dual-polarization (DP) coherent optical technologies enable an effective abstraction of the quality-of-transmission (QoT) using a single parameter—the generalized signal-to-noise ratio (GSNR). This approach leverages:
✅ Pluggable transceiver (TRX) equalization to mitigate impairments
✅ Depolarized data channels, making light paths reliably modeled as additive white Gaussian noise (AWGN) channels
✅ Accurate QoT estimation, essential for optimizing optical network performance
As part of the ALLEGRO project, we are advancing PHY-DT to provide a robust, AI-enhanced, and data-driven QoT model. This enables smarter, automated optical network management.
Join us in building the future of intelligent optical networking!
#OpticalNetworking #DigitalTwin #WDM #CoherentOptics #AI #Telecom #ALLEGROProject
