In the ALLEGRO project we are pioneering next-generation flexible transceivers (TRXs) to optimize optical communication networks. A key aspect of our work is the back-to-back (B2B) characterization of coherent TRXs, enabling precise assessment of light-path GSNR thresholds across multiple modulation formats (MFs).
📈 Key Insights from Our Research:
- Flexibility in DP Coherent TRXs: These transceivers leverage I/Q modulators driven by DSP-shaped signals, supporting adaptable multilevel constellations for increased data rates.
- B2B Characterization: By simulating channel effects through ASE noise loading, we obtain pre-FEC BER vs. OSNR curves for different MFs, essential for determining GSNR thresholds.
- Network Feasibility Modeling: Critical parameters such as symbol rate, roll-off factors, and power consumption must be integrated into the network controller for effective light-path feasibility evaluation.
🔍 Impact on Optical Networks: This methodology ensures optimal performance tuning of TRXs, minimizing noise impact and maximizing spectral efficiency—especially crucial for short-reach scenarios. With raised cosine-shaped power spectral density, our approach enhances transparency and power efficiency in modern optical networks.
Stay tuned as we continue to push the boundaries of next-generation optical transport technologies!
#HorizonEurope #ALLEGRO #OpticalNetworking #CoherentTRX #5G #FutureNetworks
