Coherent UD-WDM RoF Fronthaul network with D-EML transmitter and phase-noise robust receiver

Abstract

This work proposes and tests a simplified coherent uplink architecture for ultra-dense coherent analog mobile Fronthaul with phase noise cancellation based on single sideband modulation of a dual-EML. Results show optical channel spacings of only 1.5 GHz and error-free signal recovery with Δν Tb = 1.2% and 3% with reaching power as low as −46dBm for 100 Mbit/s and −38 dBm for 1 Gbit/s using QPSK modulation.

This work was supported by the Spanish Comisión Interministerial de Ciencia y Tecnología (CICYT) Project Versatile Coherent Dual Optical Network (VERSONET) under Grant RTI2018-097051 and in part by the Grant “Proyectos de I+D+i” under Grant PID2019-107885GB- C31.

Peer Reviewed

Postprint (author's final draft)