Constant envelope OFDM transmission over metro-regional optical links

• DOI: 10.1364/josab.482523
• Publication Date: 2023-04-11T13:00:07Z
• Authors: Caio M. Santos; Pablo R. N. Marciano; Maria J. Pontes; Marcello E. V. Se...; Jair A. Lima Silva
• Keywords: Modulation (music); Envelope (radar); Channel spacing

The transmission of constant envelope orthogonal frequency division multiplexing (CE-OFDM) signals is experimentally demonstrated in this paper to increase the reach metro-regional optical links. A recirculating fiber loop was implemented for aim. extension 100 km standard single-mode achieved with CE-OFDM-based system, considering 16 quadrature amplitude modulation (16-QAM) as subcarrier mapping and links without dispersion compensation. Link lengths long 700 km, spectral efficiency 1.89 b/s/Hz, were accomplished performances below forward error correction limit.