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 to cope with the associated demands, such as high performance, easy scalability, low cabling complexity and low power consumption. Many research efforts have been dedicated to...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/3/203 |
| _version_ | 1797443400570503168 |
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| author | Shaojuan Zhang Xuwei Xue Eduward Tangdiongga Nicola Calabretta |
| author_facet | Shaojuan Zhang Xuwei Xue Eduward Tangdiongga Nicola Calabretta |
| author_sort | Shaojuan Zhang |
| collection | DOAJ |
| description | In order to meet the massively increasing requirements of big-data applications, data centers (DCs) are key infrastructures to cope with the associated demands, such as high performance, easy scalability, low cabling complexity and low power consumption. Many research efforts have been dedicated to traditional wired data center networks (DCNs). However, DCNs’ static and rigid topology based on optical cables significantly limits their flexibility, scalability, and even reconfigurability. The limitations of this wired connection can be addressed with optical wireless technology, which avoids cable complexity problems while allowing dynamic adaption and fast reconfiguration. Here, we propose and investigate a novel optical wireless data-center network (OW-DCN) architecture based on nanoseconds semiconductor optical amplifier (SOA)-based wavelength selectors and arrayed waveguide grating router (AWGR) controlled by fast field-programmable gate array (FPGA)-based switch schedulers. The full architecture, including the design, packet-switching strategy, contention solving methodology, and reconfiguration capability, is presented and demonstrated. Dynamic switch scheduling with a FPGA-based switch scheduler processing optical label and software-defined network (SDN)-based reconfiguration were experimentally confirmed. The proposed OW-DCN was also achieved with a power penalty of less than 2 dB power penalty at BER < 1 × 10<sup>−9</sup> for a 50 Gb/s OOK transmission and packet-switching transmission. |
| first_indexed | 2024-03-09T12:56:29Z |
| format | Article |
| id | doaj.art-0013ed8818184fa5ba9e989a911e7dfc |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T12:56:29Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-0013ed8818184fa5ba9e989a911e7dfc2023-11-30T21:59:38ZengMDPI AGPhotonics2304-67322022-03-019320310.3390/photonics9030203Low-Latency Optical Wireless Data-Center Networks Using Nanoseconds Semiconductor-Based Wavelength Selectors and Arrayed Waveguide Grating RouterShaojuan Zhang0Xuwei Xue1Eduward Tangdiongga2Nicola Calabretta3Electro-Optical Communications (ECO), Technology University of Eindhoven, 5600 AZ Eindhoven, The NetherlandsElectro-Optical Communications (ECO), Technology University of Eindhoven, 5600 AZ Eindhoven, The NetherlandsElectro-Optical Communications (ECO), Technology University of Eindhoven, 5600 AZ Eindhoven, The NetherlandsElectro-Optical Communications (ECO), Technology University of Eindhoven, 5600 AZ Eindhoven, The NetherlandsIn order to meet the massively increasing requirements of big-data applications, data centers (DCs) are key infrastructures to cope with the associated demands, such as high performance, easy scalability, low cabling complexity and low power consumption. Many research efforts have been dedicated to traditional wired data center networks (DCNs). However, DCNs’ static and rigid topology based on optical cables significantly limits their flexibility, scalability, and even reconfigurability. The limitations of this wired connection can be addressed with optical wireless technology, which avoids cable complexity problems while allowing dynamic adaption and fast reconfiguration. Here, we propose and investigate a novel optical wireless data-center network (OW-DCN) architecture based on nanoseconds semiconductor optical amplifier (SOA)-based wavelength selectors and arrayed waveguide grating router (AWGR) controlled by fast field-programmable gate array (FPGA)-based switch schedulers. The full architecture, including the design, packet-switching strategy, contention solving methodology, and reconfiguration capability, is presented and demonstrated. Dynamic switch scheduling with a FPGA-based switch scheduler processing optical label and software-defined network (SDN)-based reconfiguration were experimentally confirmed. The proposed OW-DCN was also achieved with a power penalty of less than 2 dB power penalty at BER < 1 × 10<sup>−9</sup> for a 50 Gb/s OOK transmission and packet-switching transmission.https://www.mdpi.com/2304-6732/9/3/203data center architecturefree-space optical communicationfast optical switch |
| spellingShingle | Shaojuan Zhang Xuwei Xue Eduward Tangdiongga Nicola Calabretta Low-Latency Optical Wireless Data-Center Networks Using Nanoseconds Semiconductor-Based Wavelength Selectors and Arrayed Waveguide Grating Router Photonics data center architecture free-space optical communication fast optical switch |
| title | Low-Latency Optical Wireless Data-Center Networks Using Nanoseconds Semiconductor-Based Wavelength Selectors and Arrayed Waveguide Grating Router |
| title_full | Low-Latency Optical Wireless Data-Center Networks Using Nanoseconds Semiconductor-Based Wavelength Selectors and Arrayed Waveguide Grating Router |
| title_fullStr | Low-Latency Optical Wireless Data-Center Networks Using Nanoseconds Semiconductor-Based Wavelength Selectors and Arrayed Waveguide Grating Router |
| title_full_unstemmed | Low-Latency Optical Wireless Data-Center Networks Using Nanoseconds Semiconductor-Based Wavelength Selectors and Arrayed Waveguide Grating Router |
| title_short | Low-Latency Optical Wireless Data-Center Networks Using Nanoseconds Semiconductor-Based Wavelength Selectors and Arrayed Waveguide Grating Router |
| title_sort | low latency optical wireless data center networks using nanoseconds semiconductor based wavelength selectors and arrayed waveguide grating router |
| topic | data center architecture free-space optical communication fast optical switch |
| url | https://www.mdpi.com/2304-6732/9/3/203 |
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