650 Km Long Incoherent DWDM Spectrum-Sliced System Running At 10 Gb/S Utilizing a Single High-Powered LED Source and Semiconductor Optical Amplifiers (SOAS) as Pre-Amps
by A. Wong Yoon Khang, David I. Forsyth
Published: March 24, 2026 • DOI: 10.51584/IJRIAS.2026.110200169
Abstract
The deployment of more economical and cost-effective wavelength division multiplexing (WDM) solutions for access and metro networks still remains a key research focus. This paper reports on significant performance enhancement improvements of an economical, four channel totally incoherent spectrum-sliced DWDM system using a single high-powered LED source and incorporating semiconductor optical amplifiers (SOAs) as pre-amplifiers on each channel. The total length of the link ran for an unsurpassed maximum of 650 km at 10 Gb/s, whilst still yielding reasonable Q-factors and very high signal-to-noise ratios (SNRs).