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Monolithic germanium photodiodes on every cell calibrate a 32×32 silicon photonic switch of 448 Mach-Zehnders in 10 minutes. 64 fibers permanently attached through a waveguide concentrator in a wire-bonded BGA achieve 2.9dB C-band TE fiber-to-die.
We demonstrate scaling photonic switch for a datacenter using arrays of fast silicon photonic space switches that are time-slot synchronized, despite the varying distance of interconnected nodes. A low latency scheduling algorithm allows high throughput, with latency comparable to electronic switches.
Photonic packet switches potentially provide high switching capacity for next-generation datacenters at low cost, low power, and low footprint. In this paper, we address the scalability and packet scheduling for intra-connectivity of next generation photonic datacenters. We first propose a scalable photonic packet fabric based on a stack of small buffer-less silicon photonic switches which are timeslot...
The increased propagation delay of future long-reach passive optical networks (LR-PONs) may lead to a significantly increased idle time and delay if optical network units (ONUs) use conventional report-grant mechanisms. Sophisticated and efficient bandwidth allocation mechanisms are required to cope with the imposed propagation delay in LR-PONs. In this study, we evaluate three dynamic bandwidth allocation...
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