VPIphotonics at ECOC 2007

Come and visit us at Booth 13016!

• Feature Presentations
• VPIphotonics Papers in Technical Program
• VPIlinkConfigurator v 2.5
• VPItransmissionMaker & VPIcomponentMaker v 7.5
• Project "Berlin Access"
• University Program

• Link Configuration for New Systems and Upgrade Scenarios
  The configuration of optical transmission links requires consideration of many trade-offs to optimize performance while minimizing costs. The presentation shows how to capture innovations as link design rules and equipment libraries to help application engineers respond to RFQs by configuring equipment based on brown and green field requirements. Detailed customizable reports (such as system performance, BOM, equipment utilization) will be generated.

• Dynamic Network Reconfiguration
  In order to meet the growing traffic demand, current WDM networks are upgraded with Reconfigurable Optical Add-Drop Multiplexers (ROADM) that enable a dynamic reconfiguration of the lambda plane. However, dynamic traffic changes have an impact on system performance as they can lead to EDFA transients. VPI experts will demonstrate that such systems can be investigated using VPItransmissionMaker and will present several solutions to mitigate the impact of these transients.

• Optical Access and Radio-over-Fiber
  Requirements for the delivery of analog and digital services in access networks including FTTx/PON and wireless backhaul will be discussed. Predicting network performance requires modeling impairments resulting from QAM distortion ingress, SBS and others. Various examples of access topologies and high dynamic range systems will be shown.

• Modulation Formats and Electronic Equalization
  Requirements for robust and cost-effective core and metro WDM networks drive the demand for new optical modulation formats (e.g., DPSK, duobinary, multi-level schemes) as well as techniques for electronic pre-compensation and equalization (e.g., FFE-DFE, MLSE). VPI experts will demonstrate performance advantages of different techniques in light of impairments from fiber propagation, bandwidth and noise limitations.

• Raman Amplifiers and Doped-Fiber Applications
  An introduction into the theoretical background of modeling Er/Yb doped or co-doped fibers for amplification and lasing will be explored. Examples of designs for Er/Yb co-doped fiber amplifiers, cladding pumped high power lasers and Er doped pulsed fiber lasers will be presented. Automated Raman pump optimization in light of realistic fiber propagation characteristics will be discussed.

• Semiconductor based Lasers and Amplifiers
  A high degree of flexibility in adapting model characteristics and accurate numerical techniques are required to predict the complex nonlinear dynamics of multi-element active photonic circuits and lasers over wide optical bandwidths. VPI experts will demonstrate design applications for integrated tunable lasers, high-power lasers, ultra-fast sources, optical switches, edge detectors, wavelength converters and regenerators.

Wed, Sep 19th, 4:30-6:00pm, Poster Session (Central Lobby), presented by Hadrien Louchet and André Richter
Abstract: A novel architecture based on OFDM modulation and optical heterodyne detection that requires no electrical or optical phase-locked-loop is proposed. System performances are compared with those of a DQPSK system at a data-rate of 100-Gb/s.

Thur, Sep 20th, 10:00-10:15am, Session 9.1-MLSE (Hall 3), presented by Hadrien Louchet
Abstract: Imperfections of clock recovery from highly distorted signals limit the utilization of electronic dispersion mitigation. We investigate the impact of clocking errors on the performance of MLSE-Viterbi equalization using static and adaptive channel estimation.

VPIlinkConfigurator is a versatile software tool for automatic optical equipment configuration, allowing engineering to respond more easily to network design tasks, product application requests and RFQs.

Version 2.5 provides powerful link modeling capabilities using sophisticated, patented algorithms in conjunction with an easy-to-use graphical user interface. Monitor points placed along the link help to extract information on goals and actual performance in either graphical or numeric format. Bill of Materials and performance reports are automatically created in a customizable format. Version 2.5 offers an enhanced Application Programming Interface to import custom-build equipment characterization and synthesis routines. The result is that VPIlinkConfigurator provides a single solution that enables rapid WDM network link design, optimization and reporting at the click of a button. Furthermore VPIlinkConfigurator enables centralization of product libraries, engineering rules and design methodologies to insure consistent results across an organization.

VPIsystems is proud to present Version 7.5 providing a mixture of design process and numerical modeling advances that speed the construction, evaluation and visualization of complex simulation tasks.

Among the new features of Version 7.5 are new methods for BER estimation, improved fiber modeling techniques, new simulation models for optical amplifiers, and active photonic circuits. Further on, the new version provides a complete integration and new features of VPIphotonicsAnalyzer^TM—the new scheme for interactively visualizing results and analyzing data. It is designed to allow maximum freedom in the display, arrangement, export and analysis of results.

Learn more about the cost-effective architecture and component solutions for fiber-to-the-home (FTTH) networks developed by the Berlin Access consortium.

VPI supports 130+ universities and non-profit research centers around the world to simulate lab experiments, perform classroom demonstrations, and investigate new designs. The VPIsystems University Program offers academic software licensing and training discounts, flexible licensing options and course material development.

Photonics Curriculum v 4.0

With the Photonics Curriculum our partners receive a free package of course material including lecture notes and laboratory exercises for academic programs. The curriculum is designed to teach the basics of Photonics using VPIsystems modeling and analysis tools. The material consists of individual modules that are customizable and extendable.

The reworked and updated version 4.0 contains 14 course modules with new laboratory exercises for VPItransmissionMaker & VPIcomponentMaker v 7.5.

Free Simulator – VPIplayer^TM

Sophisticated simulation setups can be exported from VPIphotonics optical equipment design suite, easily distributed as dynamicDataSheet™ (dds), and run in the free simulator VPIplayer. This empowers R&D engineers or teachers to present their ideas to colleagues, customers or students who have less specialized technical knowledge, and no need for detailed design and simulation software. VPIplayer comes with a fully featured photonic simulation engine and generates results on flexible data analyzers. Interactive settings allow adjusting parameter settings via predefined sliders.

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