Reconfigurable WDM/TDM Access Network Providing 10-Gb/s/ Over 27-km SSMF With Colorless ONU
ABSTRACT Due to the emerging bandwidth-hungry applications (e.g., high-quality video content), the traffic load may significantly vary in time across the access network. Therefore, the network operator should be capable of distributing the available bandwidth in a flexible manner in order to provide the end-user with an uninterrupted service. In this letter, we present the experimental results carried out on the testbed of a hybrid wavelength-division-multiplexing/time-division-multiplexing access network based on cost-efficient elements like an integrated optical add-drop multiplexer and a reflective electroabsorption modulator combined with a semiconductor optical amplifier which provides bandwidth on-demand. We successfully transmit simultaneous upstream and downstream traffic at 10 Gb/s/lambda (nonreturn-to-zero) over 27-km standard single-mode fiber in various configurations of four wavelengths.
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ABSTRACT: In this paper, we have analyzed the performance and feasibility of a hybrid wavelength division multiplexing/time division multiplexing passive optical network (WDM/TDM) PON system with 128 optical networks units (ONUs). In the proposed network, the triple play services (video, voice and data) are successfully transmitted to a distance of 28 km to all ONUs. In addition, we investigate and compare the proposed hybrid PON for suitability of various modulation formats for different distance. It has been observed that the most suitable data format for hybrid PON network is NRZ Rectangular.Optical Fiber Technology 12/2012; 18(6):518–522. · 1.19 Impact Factor