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Asia optical Fiber communication and Optoelectronic Exposition and Conference, AOE 2008

作者： Möller, Lothar Su, Yikai Xie, Chongjin Gripp, Jurgen Liu, Xiang Ryf, Roland Bell Labs Lucent Technologies 791 Holmdel-Keyport RD Holmdel NJ 07733 United States State Key Lab of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University 200030 China

We demonstrate for the first time 640-Gb/s single-channel OTDM RZ-DQPSK signaling with record spectral efficiencies of 2.4 bit/s/Hz and up to 3.2 bit/s/Hz. The demonstrated data rate is the highest to date detected wi... 详细信息

ISBN: (纸本)9781557528636

关键词： Efficiency

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Pulse delay and advancement in ring resonator with mutual modes coupling

Pulse delay and advancement in ring resonator with mutual mo...

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optical Transmission, Switching, and Subsystems VI

作者： Wang, Jing Li, Qiang Wang, Tao Liu, Fangfei Su, Yikai Qiu, Min Electrum 229 164 40 Kista Sweden State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China

We show that a ring resonator with mutual modes coupling can achieve pulse delay or advancement of tens nano-seconds, which is similar as a ring resonator with single mode. Nevertheless, the pulse response can be sensitively tunable either through mutual mode coupling or through waveguide-ring coupling in the vicinity of resonant frequency. © 2008 SPIE.

关键词： Slow light

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Slow light and signal processing in silicon nano-waveguides

Slow light and signal processing in silicon nano-waveguides

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2008 IEEE PhotonicsGlobal at Singapore, IPGC 2008

作者： Su, Yikai Li, Qiang Fangfei Liu Qingjiang Chang Ziyang Zhang Min Qiu State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University 800 DongChuan Rd Shanghai 200240 China Department of Microelectronics and Applied Physics Royal Institute of Technology Sweden

We report various all-optical signal processing functions using silicon microring resonators with a 450250-nm cross section. These demonstrations include slow-light delay of phase-modulated data and microwave photonic... 详细信息

ISBN: (纸本)9781424429059

关键词： Silicon

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Simultaneous transmission of high-speed point-to-point data and double broadcast services in a WDM-PON system with source-free ONUs

Simultaneous transmission of high-speed point-to-point data ...

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optical Transmission, Switching, and Subsystems VI

作者： Chang, Qingjiang Huang, Mingfang Su, Yikai State Key Lab. of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200240 China School of Electrical and Computer Engineering Georgia Institute of Technology GA 30332 United States

We propose that double broadcast services can be overlaid over high-speed point-to-point downlink data in a WDM-PON with source-free optical network units (ONUs). In the optical line terminal (OLT), a set of single-drive MachZehnder modulators (MZMs) are driven by downlink point-to-point data to generate a differential phase-shift keying (DPSK) format. The downlink DPSK signals from different wavelengths are multiplexed and then fed to a following dual-parallel MZM (DPMZM) as a double broadcast services transmitter. The broadcast service-l is an optical carrier suppression (OCS) format, while the broadcast service-2 is an inverse return-to-zero (IRZ) forma. After the transmission, at each ONU, the optical signals are separated by an optical filter. The filtered OCS signal is detected to retrieve the broadcast service-1. The DPSK/IRZ signals are split into three parts, one part is detected by an IRZ receiver to recover the broadcast service-2, the second part is detected by a DPSK receiver to retrieve the downlink data and the third part is re-modulated by the upstream amplitude shift keying (ASK). We also perform an experiment to verify the feasibility of the proposed scheme, where the power penalties of less than 1.5 dB are obtained after 25-km transmission with 1.25-Gb/s data rate. © 2008 SPIE.

关键词： Digital storage

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Enhanced connectivity in ASON/GMPLS network with demonstrations

Enhanced connectivity in ASON/GMPLS network with demonstrati...

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The Joint International Conference on optical Internet and Next Generation network (COIN-NGNCON)

作者： Weisheng Hu Yaohui Jin Weiqiang Sun Wei Guo Hao He State Key Lab of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University Shanghai China

Automatic switched optical network (ASON) is controlled with generalized multi protocol label switch (GMPLS). It enables telecom operators to provide automatic traffic provisioning for enhanced network protection, operation and maintenance. The emerging broadband services, such as IPTV and e-science, need point-to-multipoint and multipoint-to-multipoint connections besides the point-to-point one in optical layer. This paper investigates the enhanced connectivity in ASON/GMPLS network with demonstration in field trial of eastern China.

关键词： Telecommunication switching optical fiber networks Automatic control optical control Telecommunication control Protocols optical switches communication system traffic control Protection IPTV

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Task scheduling and lightpath establishment in optical grids

Task scheduling and lightpath establishment in optical grids

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INFOCOM 2008: 27th IEEE communications Society Conference on Computer communications

作者： Liu, Xin Wei, Wei Qiao, Chunming Wang, Ting Hu, Weisheng Guo, Wei Wu, Min-You Department of Computer Science and Engineering SUNY Buffalo NY 14260 United States NEC Laboratories America Princeton NJ 08540 United States State Key Lab. of Advanced Optical Communication Systems and Networks SJTU Shanghai 200030 China

ISBN: (纸本)9781424420261

Data-intensive Grid applications require huge data transferring between multiple geographically separated computing nodes where computing tasks are executed. For a future WDM network to efficiently support this type of emerging applications, traditional approaches to establishing lightpaths between given source destination pairs are not sufficient because a computing task may be executed on any one of several computing nodes having the necessary resources. Therefore, lightpath establishment has to be considered jointly with task scheduling to achieve best performance. In this paper, we study the optimization problems of jointly scheduling both computing resources and network resources. We first present the formulation of two optimization problems with the objectives being the minimization of the completion time of a job and minimization of the resource usage/cost to satisfy a job with a deadline respectively. When the objective is to minimize the completion time, we devise an optimal algorithm for a special type of applications. Furthermore, we propose efficient heuristics to deal with general applications with either optimization objective and demonstrate their good performances via simulation. © 2008 IEEE.

关键词： Optimization

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Concentric silicon micro-ring resonators with enhanced transmission notch depth

Concentric silicon micro-ring resonators with enhanced trans...

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Optoelectronic Materials and Devices III

作者： Li, Xiaohui Zhang, Ziyang Li, Qiang Qiu, Min Su, Yikai State Key Lab. of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University 800 Dongchuan Rd Shanghai 200240 China Department of Microelectronics and Applied Physics Royal Institute of Technology 164 40 Kista Sweden

In this work, we have analyzed, fabricated and demonstrated concentric micro-ring resonators in silicon-on-insulator (SOI) structure for enhanced transmission notches. The operation principles of the concentric ring resonators are studied by time-domain coupled-mode theory. Directional coupling between concentric rings offers another freedom in designing deep notch optical filters and ultra-sensitive biosensors. The finite-difference-time-domain (FDTD) simulations have shown the improvement of the notch depth, evenly distributed mode field and the effect of the resonance shift. The device is demonstrated in silicon-on-insulator structure. Transmission notch depth improvement of ~ 15dB is demonstrated for the 21-20.02-μm-radius double-ring structure comparing with the single 21-μm-radius ring. © 2008 SPIE.

关键词： Silicon on insulator technology

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Reliability and real-time assurance of fly-by-light network for flight control system

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Guangxue Xuebao/Acta Optica Sinica 2008年第SUPPL. 2期28卷 196-200页

作者： Luo, Jiarong Luo, Xuan He, Hao Jin, Yaohui Huang, Haoyi Wu, Jianmin State Key Laboratory on Fiber-Optic Local Area Network and Advanced Optical Communication Systems Shanghai Jiaotong University Shanghai 200240 China National Defense Science and Technology Key Laboratory for Avionics System Integration Technology Shanghai 200233 China

A survey is made on several traditional topologies of fly-by-light(FBL) network. Based on the comparison of their reliability and real-time performance, a mesh optical switching network topology with 256 nodes is chosen. The redundancy topology gives the ability to sustain 3 link faults, which assures the reliability of network. The seriousness of the network failure can be measured by the number of link faults. And when several link faults occur at the same time, it must also be measured by the contiguity degree among the faults. A simulation is taken to test the end-to-end latency under all network failure situations. The simulation results show that even when some serious fault occurs, the number of hops of the end-to-end route increases slightly. So it still meets the real-time communication requirements.

关键词： Flight control systems

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Ultra-compact mode-split silicon microring resonator for format conversion from NRZ to FSK

Ultra-compact mode-split silicon microring resonator for for...

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Optoelectronic Materials and Devices III

作者： Liu, Fangfei Li, Qiang Zhang, Ziyang Qiu, Min Su, Yikai State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China Department of Microelectronics and Applied Physics Royal Institute of Technology Electrum 229 164 40 Kista Sweden

We propose and experimentally demonstrate all optical format conversion from non-return-to-zero (NRZ) format to frequency-shift-keying (FSK) format based on free carrier dispersion effect in a silicon mode-split microring resonator. The injection of the high-power NRZ signal generates free carriers leading to the blue shift of the spectrum when a '1' comes. Therefore, there is a selective filtering for the two probes with certain separation located at different position of the split mode according to the information carried by the NRZ signal. Then the NRZ signal is converted to the FSK format. The microring resonator features ultra-compact size with a radius of 10 urn thus is suitable for integration with silicon-on-insulator (SOI) based optical and electronic devices. The split mode can provide large and variable frequency deviation for the FSK signal. 1 Gb/s NRZ signal is successfully converted to FSK format with a frequency deviation of 40 GHz, which can find application for interconnection between a metropolitan area networks (MAN) and a passive optical network (PON) system. © 2008 SPIE.

关键词： Passive optical networks

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A metro-access integrated network with all-optical virtual private network function using DPSK/ASK modulation format

A metro-access integrated network with all-optical virtual p...

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network Architectures, Management, and Applications VI

作者： Tian, Yue Leng, Lufeng Su, Yikai State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200240 China New York City College of Technology City University of New York 300 Jay Street BrooklynNY 11201 United States

ISBN: (纸本)9780819473776

All-optical virtual private network (VPN), which offers dedicated optical channels to connect users within a VPN group,is considered a promising approach to efficient internetworking with low latency and enhanced security implemented in the physical layer. On the other hand, time-division multiplexed (TDM) / wavelength-division multiplexed (WDM) network architecture based on a feeder-ring with access-tree topology, is considered a pragmatic migration scenario from current TDM-PONs to future WDM-PONs and a potential convergence scheme for access and metropolitan networks,due to its efficiently shared hardware and bandwidth resources. All-optical VPN internetworking in such a metro-access integrated structure is expected to cover a wider service area and therefore is highly desirable. In this paper, we present a TDM/WDM metro-access integrated network supporting all-optical VPN internetworking among ONUs in different sub- PONs based on orthogonal differential-phase-shift keying (DPSK) / amplitude-shift keying (ASK) modulation format. In each ONU, no laser but a single Mach-Zehnder modulator (MZM) is needed for the upstream and VPN signal generation, which is cost-effective. Experiments and simulations are performed to verify its feasibility as a potential solution to the future access service. © 2008 SPIE.

关键词： Passive optical networks

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