OFC23 – sigdel
Duobinary-Coded Coherent ΣΔ Radio-over-Fiber Transmission at 9 GHz Downlink Channel Spacing
OFC 2023, San Diego, USA, Mar. 2023, W4J.6
Bernhard Schrenk, and Florian Honz
We show digitized radio-over-fiber transmission using coherent envelope detection. A low EVM of 1.3%, a high optical budget of 34.6dB and 25% improvement in spectral occupancy are found when introducing duobinary signaling and coherent detection.