We exploit the phase coherence of comb carriers for shared DSP across both wavelength and spatial domains. After 176 km, 6 reference channels enable carrier phase recovery of 3 (cores) × 152 × 24.5-GBaud PM-64QAM C-band channels, achieving >28-/s/core.
Optical Parametric Frequency Comb Regeneration for Phase-Coherent Signal Processing in a 176 km MCF Link
Orsuti, Daniele;Palmieri, Luca;
2025
Abstract
We exploit the phase coherence of comb carriers for shared DSP across both wavelength and spatial domains. After 176 km, 6 reference channels enable carrier phase recovery of 3 (cores) × 152 × 24.5-GBaud PM-64QAM C-band channels, achieving >28-/s/core.
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