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 TitleDate AddedCompany
whitepaper On Cascades of Resonators for High-Bandwidth Integrated Optical Interconnection Networks2006-10-30 Optical Society of America
  The power penalty characteristics of high-speed optical signals transmitted through a variety of filters based on multiple microring resonator devices are analyzed by numerical simulation. The technique used here has been verified with single-ring experimental measurements. Butterworth and Chebyshev filters are investigated, as are serial cascades of resonant devices. Although the power penalty is generally not prohibitive, it is a parameter which cannot be ignored for the design of complex high-bandwidth photonic interconnect systems that utilize microring resonators as filters and switches.

Tags: Bandwidth Issues		   
whitepaper Analysis of Next Generation PON Architecture for Optical Broadband Access Networks2006-10-11 C-DOT
  This paper has proposed a next generation hybrid WDM/TDM based PON architecture. The paper has analyzed the role of WDM in access networks, the challenges and strategies to enable smooth and economical migration from current TDM-PONs to future WDM-PONs. The proposed architecture is based on collector ring and distributed star networks that can support both existing TDM-PONs and new WDM-PONs. This architecture guarantees backward compatibility for users on existing TDM-PONs with only minimal upgrades on feeder network while providing higher bandwidth to users on new WDM-PON. This paper has reviewed the access network bandwidth upgradation scenario and scalability analysis in term of number of users and link reach.

Tags: Broadband		   
whitepaper Utilizing Path Diversity in Optical Packet Switched Interconnection Networks2006-10-03 Optical Society of America
  SPINet (Scalable Photonic Integrated Network) was recently introduced as an optical packet switched interconnection architecture for local area applications such as high-performance computing systems and storage-area networks. A SPINet switching fabric is comprised of a set of wideband 2×2 photonic switching nodes organized in a Multistage Interconnection Network (MIN). Semiconductor Optical Amplifiers (SOAs) are used as switching elements to allow for all-optical wideband transmission and packet-rate granularity, facilitating high bandwidth, ultra-low latency, and high utilization that are required for future interconnection networks. Mainly targeted for photonic integration, SPINet does not employ optical buffering of any kind and messages are dropped upon contention.

Tags: Switching		   
whitepaper Burst Routing Planning for Optical Networks Using the Association Rule Approach2006-10-01 Yuan Ze University
  The Optical Burst Switching (OBS) is a technology positioned between Optical Circuit Switching (OCS) and Optical Packet Switching (OPS). It is a promising buffer-less DWDM switching technology that provides high wavelength utilization. One of the critical design issues in OBS network is effective planning in minimizing burst dropping resulted from resource contention. This paper attempts to adopt the association rule approach to pre-determine a suitable routing path in the OBS network. The paper proposes the hybrid OBS routing planning with the aid of Apriori algorithm searches for the suitable routing path to reduce the transmission collision rate. The heuristic rules discovered by Apriori algorithm are stored in the Knowledge Base (KB) as references for determining the most suitable routing path.

Tags: Switching, DWDM		   
whitepaper Silicon Photonics Breakthroughs2006-09-28 Intel
  This presentation provides a vision to "Siliconize" Photonics for optical interconnects for Tera-Scale PCs and servers. The presentation provides a new Silicon Photonics breakthrough to make arrays of low cost Tera-Bit links and explains how silicon photonics provides as technology option for Tera-Scale I/O.

Tags: Network Administration		   
whitepaper Optical Buffering and Switching for Optical Packet Switching2006-09-13 University of California
  This paper describes the design and initial results of an all-optical buffered 40 Gb/s packet switch. Dynamic packet forwarding is illustrated and specific attention is directed to buffering. The paper assesses the challenges in meeting the requirements for optical buffering devices. Slow light and delay line buffering approaches are described and several recent results and issues are summarized.

Tags: Switching		   
whitepaper Deploying CWDM to Overcome Bandwidth Limitations of FTTH Access Networks2006-08-30 Cube Optics
  FTTH networks in North America are being built using various PON architectures fed from a common backhaul. As networks grow in terms of geographic reach, subscriber counts and the scope and number of services offered, Coarse Wave Division Multiplexing (CWDM) has clearly become the preferred method for increasing the bandwidth of these optical access networks quickly, simply and at lowest cost. Passive CWDM requires absolutely no electrical power and the technology has proven itself to be sufficiently robust and reliable for installation in the most demanding environmental conditions. Products recently released to the market allow enhanced flexibility in terms of network planning and installation while preserving scalability to handle far higher data transmission volumes as bandwidth needs expand.

Tags: Bandwidth Issues, Access Technologies		   
whitepaper Arc Perturbation Algorithms for Optical Network Design2006-08-25 United States Army
  Today's network planners are faced with the challenge to design highly complex optical networks. This paper describes and studies the performance of two new combinatorial algorithms based on the local perturbation framework to optimize the real-world optical networks. These new heuristic algorithms were implemented in an optical network design tool as a commercial product, and they are named S-arc and Sd-arc respectively.

Tags: Network Design		   
whitepaper Design Rules for Quantum Imaging Devices: Experimental Progress Using CMOS Single Photon Detectors2006-08-17 International Society for Optical Engineering
  The authors had earlier introduced a set of quantum-based design rules directed at quantum engineers who design single-photon quantum communications and quantum imaging devices. This paper reports on experimental progress using SPAD (Single Photon Avalanche Diode) arrays of the design and fabricated in CMOS (Complementary Metal Oxide Semiconductor) technology. They have also been particularly successful for intra-chip optical communications implemented entirely in CMOS technology. This paper reports on the progress toward the construction of quantitative design rules as well as some proposed tests for quantum imaging devices using entangled photon sources with our SPAD imager.

Tags: 3D Modeling and Rendering, Application Development		   
whitepaper Cisco Systems and CentrePath Help Fifth Third Bank Support Its Growing Business With a High-Speed, Highly Available Optical Network0000-00-00 Cisco Systems
  Fifth Third Bancorp is a leading financial services company based in Cincinnati, Ohio. To accommodate the immediate needs, the company planned to lease additional data center space in an office several blocks away. But instead of dividing services between the two locations, they wanted to deploy a high-speed connection between the sites, and allow them to function as a single data center. A high-speed, highly available Cisco metro optical network designed and deployed by CentrePath connects geographically dispersed data centers to support state-of-the-art disaster recovery systems and increase operational efficiency.

Tags: Disaster Recovery, High Availability