We are pleased to highlight an important contribution from the Allegro EU Project presented at OFC 2024:
P. Torres-Ferrera, J. Sime, T. Duthel, E. Virgillito, V. Curri, R. Gaudino, C. Fludger, and A. Napoli,
“Single-Fiber Bidirectional Transmission using 400G Coherent Digital Subcarrier Transceivers,” OFC 2024 Technical Digest, paper Tu3E.5.
🔗 Read the paper here
Key Highlights:
- Achieved bidirectional transmission at 400 Gb/s over a single fiber using coherent digital subcarrier multiplexing (DSCM).
- Employed subcarrier interleaving to effectively mitigate Rayleigh back-scattering.
- Reported less than 1 dB power penalty over distances up to 20 km—demonstrating exceptional performance and efficiency.
This breakthrough supports the Allegro EU Project’s mission to enhance capacity and flexibility in future optical access and backhaul networks.