Low-Latency Optical Wireless Data-Center Networks Using Nanoseconds Semiconductor-Based Wavelength Selectors and Arrayed Waveguide Grating Router

In order to meet the massively increasing requirements of big-data applications, data centers (DCs) are key infrastructures cope with associated demands, such as high performance, easy scalability, low cabling complexity and power consumption. Many research efforts have been dedicated traditional wired center networks (DCNs). However, DCNs’ static rigid topology based on optical cables significantly limits their flexibility, even reconfigurability. The limitations this connection can be addressed wireless technology, which avoids cable problems while allowing dynamic adaption fast reconfiguration. Here, we propose investigate a novel data-center network (OW-DCN) architecture nanoseconds semiconductor amplifier (SOA)-based wavelength selectors arrayed waveguide grating router (AWGR) controlled by field-programmable gate array (FPGA)-based switch schedulers. full architecture, including design, packet-switching strategy, contention solving methodology, reconfiguration capability, is presented demonstrated. Dynamic scheduling FPGA-based scheduler processing label software-defined (SDN)-based were experimentally confirmed. proposed OW-DCN was also achieved penalty less than 2 dB at BER < 1 × 10−9 for 50 Gb/s OOK transmission transmission.