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| 1 | Advances in communications using optical vortices显示文摘An optical vortex having an isolated point singularity is associated with the spatial structure of light waves.A polarization vortex(vector beam) with a polarization singularity has spatially variant polarizations. A phase vortex with phase singularity or screw dislocation has a spiral phase front. The optical vortex has recently gained increasing interest in optical trapping, optical tweezers, laser machining, microscopy, quantum information processing, and optical communications. In this paper, we review recent advances in optical communications using optical vortices. First, basic concepts of polarization/phase vortex modulation and multiplexing in communications and key techniques of polarization/phase vortex generation and(de)multiplexing are introduced. Second, free-space and fiber optical communications using optical vortex modulation and optical vortex multiplexing are presented. Finally, key challenges and perspectives of optical communications using optical vortices are discussed. It is expected that optical vortices exploiting the space physical dimension of light waves might find more interesting applications in optical communications and interconnects. | Jian Wang | 2016 | Photonics Research2016，4，5： | 43 |
| 2 | EPON与GPON的综合比较显示文摘本文重点对两种主流PON技术(EPON和GPON)在可用带宽、技术成熟度、成本、多业务能力和安全性、QoS和OAM等方面进行了综合比较和分析。从目前已经商用的EPON和GPON产品来看,二者功能和性能相当,但EPON成本更低,更具竞争优势。 | 刘冬 张崙 陈雪 | 2005 | 电信科学2005，21，6： | 23 |
| 3 | PTN——信息通信基础承载网络的演进与变革显示文摘回顾了光传送网的发展历程,论述其当前发展的3个趋势,介绍了能顺应这些趋势的分组传送网(PTN)的应用,从渊源、架构、业务承载、生存性技术、OAM、QoS、标准化进程等方面阐述了分组传送网的T-MPLS技术,讨论了分组传送网的产业化进程及引入策略。 | 朱京 刘昭伟 雷学义 贾小铁 | 2009 | 电力系统通信2009，30，4： | 21 |
| 4 | Free-space measurement-device-independent quantum-key-distribution protocol using decoy states with orbital angular momentum显示文摘In this paper, we propose a measurement-device-independent quantum-key-distribution(MDI-QKD) protocol using orbital angular momentum(OAM) in free space links, named the OAM-MDI-QKD protocol. In the proposed protocol,the OAM states of photons, instead of polarization states, are used as the information carriers to avoid the reference frame alignment, the decoy-state is adopted to overcome the security loophole caused by the weak coherent pulse source, and the high efficient OAM-sorter is adopted as the measurement tool for Charlie to obtain the output OAM state. Here, Charlie may be an untrusted third party. The results show that the authorized users, Alice and Bob, could distill a secret key with Charlie's successful measurements, and the key generation performance is slightly better than that of the polarization-based MDI-QKD protocol in the two-dimensional OAM cases. Simultaneously, Alice and Bob can reduce the number of flipping the bits in the secure key distillation. It is indicated that a higher key generation rate performance could be obtained by a high dimensional OAM-MDI-QKD protocol because of the unlimited degree of freedom on OAM states. Moreover,the results show that the key generation rate and the transmission distance will decrease as the growth of the strength of atmospheric turbulence(AT) and the link attenuation. In addition, the decoy states used in the proposed protocol can get a considerable good performance without the need for an ideal source. | 王乐 赵生妹 巩龙延 程维文 | 2015 | Chinese Physics B2015，24，12： | 17 |
| 5 | Influences of atmospheric turbulence effects on the orbital angular momentum spectra of vortex beams显示文摘We investigate the atmospheric turbulence effects on orbital angular momentum(OAM) spectra of different kinds of vortex beams, including Laguerre–Gaussian(LG) beams and Bessel beams, numerically. We generate the holograms of atmospheric turbulence with different structure constants of the refractive index. The OAM spectra of distorted single-mode or multiplexed LG beams and Bessel beams are analyzed. Compared with the OAM spectra of the two kinds of vortex beams, the spectrum of the Bessel beams is more dispersive. The results illustrate that Bessel beams suffer more from turbulent atmosphere than LG beams. | Shiyao Fu Chunqing Gao | 2016 | Photonics Research2016，4，5： | 17 |
| 6 | PTN技术在城市轨道交通的应用分析显示文摘文章分析了轨道交通传送网业务的发展变化和网络演进的现状、面临的问题,介绍了新技术分组传送网(PTN)的概念、技术标准及特点,比较了PTN、MSTP的技术优势,提出了随着业务的发展逐步引入PTN优化轨道交通传输网的思路。 | 牛晖萍 | 2011 | 广东通信技术2011，31，5： | 9 |
| 7 | MoSe2 porous microspheres comprising monolayer flakes with high electrocatalytic activity显示文摘综合的一条灵巧的胶体的线路 MoSe < 潜水艇 class= “ a-plus-plus ” > 2 有由 MoSe 组成的 400600 nm 的直径的多孔的 microspheres < 潜水艇 class= “ a-plus-plus ” > 2 个 单层薄片在厚度的 0.7 nm 被报导。溶剂 trioctylamine TOA 和 oleylamine 操作维护管理被发现在 MoSe 的形成起重要作用 < 潜水艇 class= “ a-plus-plus ” > 2 microspheres, TOA 由此决定三维的 3D microspherical 形态学和操作维护管理,指导 MoSe 的形成 < 潜水艇 class= “ a-plus-plus ” > 2 个 单层薄片。柔韧的 3D MoSe <潜水艇class=“ a-plus-plus ”> 2 microspheres 展览为 electrocatalytic 氢进化反应的显著活动和耐久性她在酸,维持 77 mV 的小发作过电位并且为 5 妈/厘米的当前的密度保留 100 mV 的小过电位<啜class=“ a-plus-plus ”>在 1,000 以后的 2 骑车。另外,类似的 3D WSe < 潜水艇 class= “ a-plus-plus ” > 2 microspheres 能被使用这个方法也准备。我们期望这条灵巧的胶体的线路能进一步被扩展综合将在域例如里发现应用的另外的多孔的结构在精力存储,催化作用,并且察觉到。 | Yejun Zhang Qiufang Gong Lun Li Hongchao Yang Yanguang Li Qiangbin Wang | 2015 | Nano Research2015，8，4： | 9 |
| 8 | Mode-division multiplexed transmission of wavelength-division multiplexing signals over a 100-km single-span orbital angular momentum fiber显示文摘We experimentally demonstrate mode-division multiplexed(MDM)transmission using eight orbital angular momentum(OAM)modes over a single span of 100-km low-attenuation and low-crosstalk ring-core fiber(RCF).Each OAM mode channel carries 10 wavelength-division multiplexing(WDM)signal channels in the C band,with each WDM channel in turn transmitting 16-GBaud quadrature phase-shift keying signal.An aggregate capacity of 2.56 Tbit/s and an overall spectral efficiency of 10.24 bit/(s·Hz)are realized.The capacity-distance product of 256(Tbit/s)·km is the largest reported so far for OAM fiber communications systems to the best of our knowledge.Exploiting the low crosstalk between the OAM mode groups in the RCF,the scheme only requires the use of modular 4×4 multiple-input multiple-output processing,and it can therefore be scaled up in the number of MDM channels without increasing the complexity of signal processing. | Junwei Zhang Junyi Liu Lei Shen Lei Zhang Jie Luo Jie Liu Siyuan Yu | 2020 | Photonics Research2020，8，7： | 8 |
| 9 | 电信级以太网技术讲座 第1讲 电信级以太网的概念与关键特征显示文摘本文从基本概念入手,对于电信级以太网业务和技术的内涵与外延进行了分析,并总结归纳了电信级以太网技术的关键特征。 | 詹翊春 | 2008 | 中国新通信2008，10，1： | 8 |
| 10 | Data information transfer using complex optical fields:a review and perspective(Invited Paper)显示文摘Tailored complex optical fields,may find applications in optical manipulation,imaging,microscopy,quantum information processing,and optical communications.Here,we focus on data information transfer for optical communications using complex optical fields.We review recent research progress in complex optical field modulation,multiplexing,and multicasting for data information transfer on different platforms of waveguides,free space,and fiber.Challenges and perspectives are also discussed. | 王健 | 2017 | Chinese Optics Letters2017，15，3： | 7 |
| 11 | 基站IP RAN组网及演进策略探析显示文摘本文主要分析了基站IP RAN的承载需求及其面临的一些挑战,结合技术发展趋势和承载网资源,阐述了运营商在基站IP RAN演进中的典型组网方案及其应用场景,并提出了基站IP RAN的演进策略。 | 张届新 马钰璐 沈成彬 毛东峰 | 2009 | 电信科学2009，25，7： | 7 |
| 12 | Efficient separating orbital angular momentum mode with radial varying phase显示文摘It is shown that orbital angular momentum(OAM) is a promising new resource in future classical and quantum communications. However, the separation of OAM modes is still a big challenge. In this paper, we propose a simple and efficient separation method with a radial varying phase. In the method, specific radial varying phases are designed and modulated for different OAM modes. The resultant beam is focused to the spots with different horizontal and vertical positions after a convex lens, when the coordinate transformation, including two optical elements with coordinate transformation phase and correct phase, operates on the received beam.The horizontal position of the spot is determined by the vortex phases, and the vertical position of the spot is dependent on the radial varying phases. The simulation and experimental results show that the proposed method is feasible both for separation of two OAM modes and separation of three OAM modes. The proposed separation method is available in principle for any neighboring OAM modes because the radial varying phase is controlled. Additionally, no extra instruments are introduced, and there is no diffraction and narrowing process limitation for the separation. | CHENG LI SHENGMEI ZHAO | 2017 | Photonics Research2017，5，4： | 7 |
| 13 | LTE海量基站业务承载网络优化方案分析显示文摘中国运营商正在积极推动LTE的部署,其具有密集化部署、业务组网与流量模型扁平化、多点化及智能化的特点,并对LTE基站业务承载网络提出了更高的要求。结合LTE海量基站场景、其业务承载与组网特点,对IP RAN承载方案优化设计、运维管理、地址优化等多方面进行分析,以提升LTE基站业务的网络承载能力、灵活性和可扩展性,降低运维的工作量及复杂度,提高业务的开放能力与效率。 | 杨广铭 梁筱斌 阎璐 马培勇 | 2013 | 电信科学2013，29，S1： | 6 |
| 14 | 网络遥测技术及其在网络自动化运维中的应用显示文摘网络遥测作为近年来不断发展的一种新的数据采集技术,极大地丰富了采集数据的多样性,拓展了传统OAM数据采集范围,其目标是实现实时的全局网络状态可视和流量可视。通过与大数据和AI技术相结合,减少人工干预,提升网络自动化运维水平。首先分析当前IP网络运维面临的问题和挑战,然后阐述网络遥测技术是实现网络自动化运维关键使能技术,在此基础上研究和探讨网络遥测技术在运营商IP网络自动化运维中的应用,为运营商大规模IP网络的自动化运维提供参考和指引。 | 毛东峰 贾曼 何晓明 刘志华 | 2021 | 电信科学2021，37，2： | 6 |
| 15 | 分组增强型OTN技术标准进展显示文摘分组增强型OTN(POTN)集成了分组传送网(PTN)和光传送网(OTN)的技术优势,并力争实现传送功能的有机融合和优化裁剪,更好地适应LTE移动回传、TDM和数据专线混合传送、IP和光网络协同组网等应用场景。在运营商和制造企业的积极推动下,我国通信标准化协会(CCSA)已完成了POTN的一系列行标制定工作,并在ITU-T SG15推进了现有标准建议完善。最后,对近期规模商用需进一步标准化的问题和面临的应用挑战进行了分析探讨。 | 李芳 胡昌军 赵文玉 | 2015 | 邮电设计技术2015，，3： | 6 |
| 16 | Wavelength-switchable vortex beams based on a polarization-dependent microknot resonator显示文摘We experimentally demonstrated a method of generating continuously wavelength-switchable optical vortex beams(OVBs) in an all-fiber laser. A polarization-dependent microknot resonator(MKR) functions as comb filter and accounts for the narrow linewidth(0.018 nm) of multiwavelength channels. The wavelength interval corresponds to the free spectral range of the MKR. We exploit a fused SMF–FMF(single mode fiber–few mode fiber) mode coupler to obtain broadband mode conversion and successfully achieve multiwavelength switchable OVBs. As far as we know, this is the first report about identical multiwavelength vortex beams with topological charges of 1. It has been verified that each channel of the vortex beams preserves the same orbital angular momentum(OAM) properties through their clear spiral interferograms. Multiwavelength vortex beams with identical OAM properties are desirable for multiplexing, exchanging, and routing to further improve the capacity of optical fiber transmission. | JINQIU ZHENG Ao YANG TENG WANG XIANGLONG ZENG NING CAO MEI LIU FUFEI PANG TINGYUN WANG | 2018 | Photonics Research2018，6，5： | 5 |
| 17 | PTN技术深入解析及应用探讨显示文摘通过对基于MPLS-TP协议架构下的新一代光接入传送技术的深入解析及应用探讨,展示了基于业务需求的各种技术的具体应用。应用探讨中着重对QOS的实现机制分析,根据流量及区分提出了一种端对端的QOS业务保障模型,并给出了具体的实施方案。另外,结合实际对OAM、时间同步及L3业务的需求进行了解析,提出了具体的应用及实施方案,并给出了具体的性能测试数据,对于PTN的实际具体应用具有较强的指导意义。 | 唐彦 冯卫东 | 2011 | 通信技术2011，44，6： | 5 |
| 18 | 激光探针电感耦合等离子体质谱分析全岩碱融玻璃的微量元素显示文摘建立了一种利用激光探针电感耦合等离子体质谱(LAM-ICP-MS)直接分析岩石碱融玻璃的微量元素分析方法;选用55Mn作内标,分别以 GSR-l和 GSR-3为外标测定JG-la和JB-3中的 33个微量元素;该分析方法的检出限为 1ng/g~ 120 μg/g。单点分析结果显示,除 Sc、Ni、Ga、Nb、Hf、Ta及Gd、Tm、Ln等重稀土元素(HREEs)外,其余元素的分析精度均好于10%,准确度在±10%以内;9次测量的平均值中,绝大多数元素的分析精度为±5%,准确度优于10%。 | 梁细荣 李献华 刘颖 李寄嵎 | 1998 | 分析化学1998，26，10： | 5 |
| 19 | 分组传送网(PTN)的演进显示文摘PTN技术是业务向ALL IP转型对承载网的需求,是未来统一网络协议,简化网络层次,降低TCO,便于提供各种类型的新业务。文章阐述了PTN优越性和演进的过程。 | 凌君丽 | 2011 | 科技资讯2011，9，7： | 4 |
| 20 | 以太接入网OAM信息的传输机制显示文摘由于以太网成熟的技术和广泛的应用,以太网接入技术已经成为接入网技术中的最新发展趋势。主要介绍了以太接入网OAM信息的传输机制,详细分析了MAC层OAM和物理层OAM信息的传输方案。 | 沈晓群 季晓飞 范戈 | 2003 | 光通信技术2003，27，3： | 4 |
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