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We demonstrate a novel optical OFDMA ring network with an adaptive sub-carrier allocation algorithm, which utilizes queuing length and traffic characteristics to effectively support multicasting and real-time traffic flows.
We demonstrated a reconfigurable waveband cross-connect that can dynamically configure uniform and non-uniform waveband assignments to improve aggregation efficiency. We applied it on 112 Gb/s polarization-multiplexed RZ-QPSK WDM system and obtained good system performance.
Intertask communications in distributed computing applications are modeled using both the frequency of communications and the ratio of data transmission time over computing time to evaluate the performance of static OCS, dynamic OCS, and OBS.
After 9/11 and the accidental failure of the power grid in North America in 2003, storage area network (SAN) extension has emerged as critical to ensuring business continuity. However, SAN extension encounters challenges in the access network, including scalability problems, cost challenges, bandwidth bottlenecks and low throughput. In this article, we propose a new solution to address these problems:...
We designed and built a novel all-optical re-timing, re-amplifying, and re-shaping (3R) regeneration system based on terahertz optical asymmetric demultiplexers (TOADs) developed in our laboratory. The system is capable of parallel processing multiple wavelengths, a feature which will significantly improve the scalability of current wavelength division multiplexing (WDM) networks. Performance against...
Todaypsilas access network is migrating towards broadband IP, fixed/mobile convergence and service convergence. Thus, the next generation access network (NGAN) requires a converged optical/wireless access network infrastructure, other than the existing architecture that connect to the cellular, broadband wireless, and optical access networks separately, which complicate the network and increase the...
We have successfully demonstrated that an inversion-RZ pulse signal can be employed in a 50Gbit/s RZ-DQPSK payload per channel and 50GHz channel spacing optical packet switching network as an orthogonal modulation optical label. This inversion-RZ optical label is generated by a novel and simple scheme.
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