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高功率激光装置光束精密调控性能研究进展 被引量:11
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作者 郑万国 李平 +7 位作者 张锐 张颖 邓学伟 许党朋 黄小霞 王芳 赵军普 韩伟 《强激光与粒子束》 EI CAS CSCD 北大核心 2020年第1期5-18,共14页
光束精密调控是惯性约束聚变(ICF)研究对激光驱动器的基本需求,它是一项装置层面的系统工程。主要介绍了中国工程物理研究院激光聚变研究中心近年来在靶面光强控制、脉冲波形控制、光束近场控制以及在新型光束探索方面所取得的重要进展。
关键词 高功率激装置 控制 脉冲精密整形 束近场控制 新型束探索
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2019江苏卫视春节联欢晚会的灯光制作方案
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作者 张雪鹏 《演艺科技》 2019年第3期1-4,共4页
介绍2019江苏卫视春节联欢晚会的灯光制作方案,详细阐述灯光对画面的整体把控,以及与其他艺术表现手段的协调配合,使得演员调度与舞台效果在画面中更加和谐。
关键词 2019江苏卫视春晚 制作 系统 面光控制 效果 色温 屏幕
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Software-Defined Optical Data Centre Networks 被引量:1
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作者 PENG Shuping GUO Bingli +3 位作者 SHU Yi George Zervas Reza Nejabati Dimitra Simeonidou 《China Communications》 SCIE CSCD 2015年第8期1-9,共9页
Based on the analysis of data centre(DC) traffic pattern, we introduced a holistic software-defined optical DC solution. Architecture-on-Demand based hybrid optical switched(OPS/OCS) data centre network(DCN) fabric is... Based on the analysis of data centre(DC) traffic pattern, we introduced a holistic software-defined optical DC solution. Architecture-on-Demand based hybrid optical switched(OPS/OCS) data centre network(DCN) fabric is introduced, which is able to realise different inter-and intra-cluster configurations and dynamically support diverse traffic in the DC. The optical DCN is controlled and managed by a software-defined networking(SDN) enabled control plane to achieve high programmability. Moreover, virtual data centre(VDC) composition is developed as an application of such softwaredefined optical DC to create VDC slices for different tenants. 展开更多
关键词 optical data centre (DC) software-defined networking (SDN) virtual data centre(VDC) VIRTUALISATION
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Intelligent Control Plane Techniques for Next Generation Optical Switching Networks 被引量:3
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作者 Takehiro Tsuritani Liu Lei 《China Communications》 SCIE CSCD 2012年第8期29-39,共11页
For the next generation optical switching networks, the intelligent control plane is a key enabling technique. In this paper, we review our recent research activities related to Generalized Multi-Protocol Label Switch... For the next generation optical switching networks, the intelligent control plane is a key enabling technique. In this paper, we review our recent research activities related to Generalized Multi-Protocol Label Switching (GMPLS) and Open Flow-based control planes for both Wave length Switched Optical Networks (WSON) and Elastic Optical Networks (EON). 展开更多
关键词 WSON EON GMPLS OpenFlow control plane
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A Novel Stateful PCE-Cloud Based Control Architecture of Optical Networks for Cloud Services 被引量:1
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作者 QIN Panke CHEN Xue +1 位作者 WANG Lei WANG Liqian 《China Communications》 SCIE CSCD 2015年第10期117-127,共11页
The next-generation optical network is a service oriented network,which could be delivered by utilizing the generalized multiprotocol label switching(GMPLS) based control plane to realize lots of intelligent features ... The next-generation optical network is a service oriented network,which could be delivered by utilizing the generalized multiprotocol label switching(GMPLS) based control plane to realize lots of intelligent features such as rapid provisioning,automated protection and restoration(P&R),efficient resource allocation,and support for different quality of service(QoS) requirements.In this paper,we propose a novel stateful PCE-cloud(SPC)based architecture of GMPLS optical networks for cloud services.The cloud computing technologies(e.g.virtualization and parallel computing) are applied to the construction of SPC for improving the reliability and maximizing resource utilization.The functions of SPC and GMPLS based control plane are expanded according to the features of cloud services for different QoS requirements.The architecture and detailed description of the components of SPC are provided.Different potential cooperation relationships between public stateful PCE cloud(PSPC) and region stateful PCE cloud(RSPC) are investigated.Moreover,we present the policy-enabled and constraint-based routing scheme base on the cooperation of PSPC and RSPC.Simulation results for verifying the performance of routing and control plane reliability are analyzed. 展开更多
关键词 optical networks control plane GMPLS stateful PCE cloud computing Qo S
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Wavelength Converter Information Sharing in GMPLS Controlled Optical Networks
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作者 Hu Tao Hua Ying Hua Yiqiang 《China Communications》 SCIE CSCD 2010年第5期77-82,共6页
Wavelength converters are used in optical networks to overcome transparent wavelength channel insufficiency. However, current GMPLS control plane does not distribute wavelength con- verter information to network nodes... Wavelength converters are used in optical networks to overcome transparent wavelength channel insufficiency. However, current GMPLS control plane does not distribute wavelength con- verter information to network nodes. To overcome this situation, four wavelength converter information sharing methods for GMPLS-controUed optical networks are proposed. The first two, Conversion Capability during Signaling (CCS) and Conversion Availability during Signaling (CAS), are based on the RSVP-TE signaling protocol, while the others, Conversion Capability Advertisement (CCA) and Conversion Availability Advertisement ( CAA ) , are based on the OSPF-TE routing protocol. Simulations show that CAA obtains the lowest blocking, while CCS the highest. Moreover, CAA only slightly increases the control plane load compared to CAS. 展开更多
关键词 GMPLS WRON wavelength converter RSVP-TE OSPF-TE
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Numerical Simulation on CCOS Controllable Variable
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作者 CHENG Hao bo, FENG Zhi jing (Dept.of Precision Instruments,Tsinghua University,Beijing 100084,CHN) 《Semiconductor Photonics and Technology》 CAS 2003年第4期251-255,共5页
On the basis of Preston hypothesis,the motion relationship between tool and workpiece upon the tools motion in planar model is analyzed.The effect on computer controlled optical surfacing (CCOS) caused by controllable... On the basis of Preston hypothesis,the motion relationship between tool and workpiece upon the tools motion in planar model is analyzed.The effect on computer controlled optical surfacing (CCOS) caused by controllable variable is simulated except for the dwelling time,thus,some reference on theory is provided to optimize the former numerical control (NC) model,and fast manufacturing of large departure aspherics is realized. 展开更多
关键词 Departure aspherics Removal function Motion in planar model CCOS
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Photodetection of the Quality on Internal Surface of Steel Pipe
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作者 MA Hong CHE Ying +1 位作者 SHEN Yuzhi BAI Baoxing(Changchun Institute of Optics and Fine Mechanics,Changchun 130022,CHN) 《Semiconductor Photonics and Technology》 CAS 1996年第2期150-154,136,共6页
In this paper,a photoelectric device is introduced,which is used in detecting the quality on internal surface of thin and long steel pipe.In this device,the CCTV lens is used for extract tile flaw information on inter... In this paper,a photoelectric device is introduced,which is used in detecting the quality on internal surface of thin and long steel pipe.In this device,the CCTV lens is used for extract tile flaw information on internal surface of the pipe,and make IBM-PC/AT 486 computer as controlling and image processing system.By this instrument,the functions,such as the digital conversion of input information,image processing,classification of recognition and output display can be obtained.In the petroleum and chemical industry,by using this apparatus,we can detect the quality on internal surface of various metal pipes with real-time automatically. 展开更多
关键词 Flaw Detection Image Processing Quality Control
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