F. Grassi, J. Mora, B. Ortega, and J. Capmany (Spain)
Signal Processing in Communications, Passive OpticalNetworks
We present an experimental optical transmission system for next-generation WDM-PONs combining broadband optical sources and a Mach-Zehnder interferometric structure. Two different configurations have been proposed with the introduction of the Mach-Zehnder interferometric structure in the Central Office or in the Base Station. The approaches leads to transport RF signals up to 20 GHz being compatible with RoF systems where the second configuration has been proposed in order to overcome dispersion carrier suppression effect using DSB modulation. Experimental measurements show higher EVM performances for 10 km SMF transmission link than using laser sources for RF carriers affected by CSE. Therefore, our approach permits to use an optical broadband source in a 20 GHz range avoiding the carrier suppression effect by using DSB modulation combined with the Mach-Zehnder structure.
Important Links:
Go Back
