High Dimensional Wireless Passive Optical Networking for Access Deployment (PON-HD)

用于接入部署的高维无线无源光网络 (PON-HD)

• 批准号: EP/T009012/1
• 负责人: Martin Lavery
• 金额: $ 93.06万
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FT009012%2F1
• 关键词: Dimensional; Wireless; Passive; Optical; Networking

By 2035, a challenge has been set for the UK to have "full-fibre" deployment across the entire country providing 1Gbps internet connectivity. British Telecom's Openreach division is responsible for achieving this ambitious target. However, deploying optical fibre has huge infrastructure costs that, in many areas, could be not economically viable due to terrain, low population density or land rights issues. After comprehensive analyses of the UK's communications network, BT has identified critical areas in the network where FTTP would be challenging, and expensive to deploy. Achieving this goal sustainably, will require new technology that can reduce the costs of deployment in rural areas, and assure network resilience. In this project, we will develop Free-space optical (FSO) solutions that can be seamlessly integrated into Passive Optical Networks (PON) to provide network access to customers in rural and urban areas that will not be serviced by fibre to the property (FTTP). FSO optical systems can provide higher capacity then radio systems, however deployment has four main technical challenges, (1) stringent alignment requirements, (2) Adversely effected by atmospheric turbulence, (3) Power Loss due to fog and scattering particulates in the air, and (4) Seamless network integration.In this project we will resolve these long standing challenges by pioneering new technologies for broadband amplifiers for long distance free-space extension of XGSPON, dynamic optical beam shaping to overcoming turbulent affects in FSO propagation, develop novel error correction codes for PON systems, and produce a self-aligning FSO prototype that can be installed into the BT network in less than 30mins. Providing these new connections will require both point-to-point (p2p) links and point-to-multipoint (p2mp) links to service rural areas, and dynamic optical mesh networks for more urban areas. Such, areas could be addressed with high capacity FSO links to provide optical connection from exchanges to local cabinets, direct to the property deployment and emergency link deployment for cable cut situations. Our FSO system will be extended to overcome fibre failure in both the back-haul and core networks increase resilience in the optical network as a whole.The technology we will develop has broad application beyond the extension of PON into free-space. Firstly, our amplification technology will have immediate usage for enabling long-reach PON and be used for the amplification of space division multiplexing in fibre, which is a hot topic in the fibre optical communications community. Secondly, our all-optical-mimo technology will have application in a range of optical sensor and communication technologies including: Lidar, Quantum Key Distribution, advanced endoscopy imaging system, remote environmental sensing and many others. Thirdly, our novel digital signal processing techniques will have application in for a wide range of communication systems.

到2035年，英国面临的挑战是在全国范围内部署全光纤，提供1Gbps的互联网连接。英国电信的OpenReach部门负责实现这一雄心勃勃的目标。然而，部署光纤有巨大的基础设施成本，在许多地区，由于地形、低人口密度或土地权问题，这些成本可能在经济上不可行。在对英国的通信网络进行全面分析后，英国电信确定了网络中FTTP将具有挑战性且部署成本高昂的关键领域。要可持续地实现这一目标，将需要能够降低农村地区部署成本并确保网络弹性的新技术。在该项目中，我们将开发可无缝集成到无源光网络(PON)中的自由空间光纤(FSO)解决方案，为农村和城市地区的客户提供网络接入，这些客户将不会通过光纤到物业(FTTP)提供服务。FSO光学系统可以提供比无线电系统更高的容量，然而部署面临着四个主要的技术挑战，(1)严格的对准要求，(2)受大气湍流的不利影响，(3)由于雾和空气中散射的颗粒而造成的功率损失，以及(4)无缝网络集成。在这个项目中，我们将通过开创用于XGSPON的长距离自由空间扩展的宽带放大器的新技术来解决这些长期存在的挑战，通过动态光束整形来克服FSO传输中的湍流影响，为PON系统开发新的纠错码，并产生一个可以在30分钟内安装到BT网络中的自对准FSO原型。提供这些新连接将需要点对点(P2p)链路和点对多点(P2MP)链路来服务农村地区，以及为更多城市地区提供动态光网状网络。此类区域可以使用高容量FSO链路来提供从交换机到本地机柜的光连接，直接用于物业部署和电缆切断情况下的紧急链路部署。我们的FSO系统将扩展以克服回程和核心网中的光纤故障，增加整个光网络的弹性。我们将开发的技术具有广泛的应用，超出了无源光网络扩展到自由空间的范围。首先，我们的放大技术将立即用于实现长距离PON，并用于光纤中的空分复用放大，这是光纤通信界的一个热门话题。其次，我们的全光MIMO技术将在一系列光学传感器和通信技术中得到应用，包括：激光雷达、量子密钥分发、先进的内窥镜成像系统、遥感环境传感等。第三，我们的新型数字信号处理技术将在广泛的通信系统中得到应用。

项目成果

Bulk optical turbulence mitigation using dynamic multiple plane light conversion

使用动态多平面光转换减轻体光学湍流

• DOI: 10.1117/12.2668730
• 发表时间: 2023
• 作者: Alsaigh R

Aberration and coherence effects with a micromirror array

微镜阵列的像差和相干效应

• DOI: 10.1117/12.2597501
• 发表时间: 2021
• 作者: Benton D

Recent developments towards high-capacity free space optical communication systems

• DOI: 10.1049/icp.2023.2109
• 发表时间: 2023
• 期刊: 49th European Conference on Optical Communications (ECOC 2023)
• 作者: A. Ellis;Y. Li;D. Benton;Z. Hu;M. Patel;Z. Chen;M. Lavery

Reconfigurable universal mode sorter built on an integrated photonics platform

基于集成光子学平台的可重构通用模式分类器

• DOI: 10.1117/12.2668649
• 发表时间: 2023
• 作者: Boldin A

Emulating atmospheric turbulence effects on a micro-mirror array: assessing the DMD for use with free-space-to-fibre optical connections

• DOI: 10.1088/2631-8695/ac7d49
• 发表时间: 2022-06
• 期刊: Engineering Research Express
• 影响因子: 1.7
• 作者: D. Benton;A. Ellis;Yiming Li;Zhuyi Hu