VPIphotonics at ECOC 2014, 21-25 September in Cannes, France

Come and visit our modeling experts at Booth 245!

New products introduced at ECOC

  • VPIlabExpert™

    Bridging the Gap between Simulations and Experiments

    This new product makes VPIphotonics’ advanced signal processing and analysis functions available for the lab environment. This includes the generation, detection and performance analysis of DP-mQAM, 4D, OFDM, radio and other signal formats, application of sophisticated digital pre-distortion and equalization techniques, encoding and decoding with forward-error correction codes, emulation of component limitations and transmission impairments.

    • Reduce efforts in the lab by applying ready-to-use advanced functionalities
    • Virtualize lab equipment by emulating optical and electrical components
    • Develop lab-ready signal processing solutions using simulations
    • Unify methodologies and tools for simulation and lab environments

  • VPImodeDesigner™

    Analysis and optimization of straight anisotropic and bent isotropic optical waveguides and related devices

    This versatile simulation framework supports the analysis and optimization of integrated photonic waveguides and related devices. It implements fullvectorial and semi-vectorial finite-difference mode solvers with support of widely customizable non-uniform meshing and perfectly matched layer absorbing boundaries. Full integration with VPIcomponentMaker Photonic Circuits allows translating waveguide cross-section definitions into model parameters of passive and active devices.

    • Facilitate advanced layout definitions and optimization tasks via powerful Python interface
    • Model straight waveguides made of dispersive anisotropic materials
    • Model bent waveguides made of dispersive isotropic/lossy materials
    • Verify cross-sections and analyze results using advanced visualization capabilities

Download the ECOC Flyer for more details.

Live Demos with our Partners

  • Emulation of Optical Transmission Impairments – at Keysight Technologies Booth 368

    Simulation-enhanced lab experiments by emulating polarization scrambling, noise loading, CD and PMD accumulation;
    perform DSP stress tests and define component specifications via controlled repetition of test scenarios

  • PAM Transmission for 100Gb/400Gb Ethernet – at SHF Communication Technologies Booth 248

    Control a chain of bit-pattern generators and drive a digital-analog converter to perform electrical arbitrary waveform generator functions;
    perform signal equalization and analysis after sampling scope detection

  • OFDM for Optical Fiber Transmission – at Tektronix Booth 495

    Generation, decoding and performance analysis of coherent 200Gb/s OFDM system;
    perform iterative adaption to transmission channel characteristics using bit and power loading equalization algorithm

  • DSP Solutions for 400Gb and 1Tb Systems – at Fraunhofer Heinrich Hertz Institute Booth 246

    Demonstration of a flexible optical transceiver for single- and multi-carrier applications, consisting of an optical AWG and a 70GHz optical coherent frontend, with data-aided equalization performed using the DSP Library toolkit

Sign up for live lab interfacing demos at our partners’ exhibits.

Feature Presentations

  • Photonic Integrated Circuits in InP and Silicon

    Photonic integrated circuits (PICs) feature a large variety of complex passive and active multifunctional elements. VPIphotonics experts will present design applications for novel PICs, including designs for integrated TXs and RXs, tunable lasers, multi-section semiconductor devices, MMI- and microring-based structures. Nonlinear effects, including Kerr and two-photon absorption and designs demonstrating the modeling of carrier and tuning dynamics, birefringence, polarization coupling, arbitrary gain and absorption spectra and dispersion will be shown.

  • Optical Fiber-Based Devices: Lasers, Amplifiers, OSP

    An introduction into modelling of optical fiber-based devices such as doped-, Raman and parametric fiber amplifiers, continuous-wave and pulsed optical fiber sources, optical signal processing for telecommunication, high-power and ultrafast applications will be given. Various application examples will be presented and design alternatives discussed.

  • Linear Electric Circuits

    We will show the efficient modeling of linear electric circuits by combining built-in electrical elements with advanced cosimulation capabilities and hierarchical design approaches. The new library of electrical elements provides fundamental building blocks such as independent voltage and current sources, resistor, capacitor, inductor, mutual inductors, ideal transformer, and more. We will illustrate the design of heterogeneous integrated circuits comprising optical and electrical sub-elements in a single simulation setup.

  • 100Gb, 400Gb and beyond

    VPIphotonics experts will discuss design aspects of robust and adaptive high-capacity systems based on 100Gb/s and Terabit channels. This includes the usage of Digital Signal Processing (DSP) and Forward-Error-Correction (FEC) to mitigate transmission impairments or to generate advanced modulation formats such as multi-carrier ( OFDM) or 4D modulations with arbitrary constellation. The technological principles and performance of 1Tb/s superchannels (based on multiband OFDM, Nyquist WDM) will be illustrated.

  • Lab-proven DSP Algorithms

    VPIphotonics teams up with the Photonic Networks and Systems department of Heinrich-Hertz Institute to provide lab-proven DSP algorithms to users of VPItransmissionMaker Optical Systems. The pluggable toolkit enables to perform I/Q imbalance correction, blind chromatic dispersion estimation and compensation, clock phase recovery and deskew, carrier frequency and phase recovery as well as polarization demultiplexing and PMD compensation for a wide range of modulation formats such as DP-BPSK, DP-QPSK, DP-mQAM, pol-switched-QPSK and much more. Live demonstrations will be performed!

  • Automated control of lab equipment

    Bridging the gap between simulation and experiment, we demonstrate the seamless integration of VPItransmissionMaker Optical Systems with lab equipment. This makes it possible to generate for instance complex electrical signals and pass them to an Arbitrary Waveform Generator (AWG) for transmission. After propagation over the fiber network and reception you may read the detected electrical signals from an Oscilloscope and utilize VPItransmissionMaker's powerful signal analyzing capabilities. The lab interface performs signal validation, conversion and transfer automatically. It is flexible enough to allow for user-specific SCPI code to be added, enabling full control of the lab equipment.

  • Aggregation, Optical Access and RF-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 intermodulation distortion, ingress, SRS, SBS and others. Various examples of access topologies and technologies will be shown, for instance the usage of reflective semiconductor optical amplifiers (RSOA) in PON-ONUs or the usage of OFDM as flexible modulation format to deliver multiple Gb/s in PON systems. Degradations related to the coexistence of different technologies on the same fiber infrastructure will be characterized (e.g. SRS between GPON and 10GPON or video-overlay).

  • Transients and Dynamic Network Reconfiguration

    VPIphotonics experts will illustrate the impact of dynamic traffic changes on system performance resulting from adding/dropping and switching channels using the Transient Simulation Environment available in VPItransmissionMaker. Different control schemes for EDFA transients as well as the modeling of ROADMs will be discussed. For instance, the impact of power loops in Ring architectures will be illustrated.

  • Cost-optimized Equipment Configuration

    The configuration of optical transmission links requires consideration of many trade-offs to optimize the 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.

Additional information required on a particular subject? Interested in discussing specific topics? Arrange a meeting with a member of the VPI R&D team. Please indicate your name, company, the issue you want to discuss and your availability during the conference.

Contributions to ECOC Conference Program

Sun, 21 Sep. 2014, 14:00 - 17:30, WS3

The benefits of integrating numerical simulations and experiments

André Richter

Abstract: We highlight important requirements of numerical simulation methods for characterizing equipment and assessing performance limitations for modern coherent transmission systems. We show that the integration of simulations with experimental data (either being prerecorded or measured live during the simulation) could deliver significant benefits for the process of proving new transmission concepts and testing related technologies.

Wed, 24 Sep. 2014, 15:45 - 18:00, P.3.12

33% Capacity Improvement of a Direct Modulation Direct Detection OFDM Link using Adaptive Volterra Equalization

Nuno André, Hadrien Louchet, André Richter, Kai Habel (Fraunhofer HHI)

Abstract: 33% capacity improvement compared to best achievable performance of an unequalized direct modulation direct detection OFDM link is experimentally demonstrated. This was achieved using a Volterra equalizer whose design was optimized for this link.

VPItransmissionMaker™ & VPIcomponentMaker™ v 9.2

VPIphotonics team will demonstrate live at ECOC 2014 VPItransmissionMaker & VPIcomponentMaker 9.2 - the market-leading photonic components and systems design suite. Among the new features are several new modules and improvements to support arbitrary 2D and 4D modulation formats, a multitude of digital signal processing techniques, concatenated FECs, Spatial Division Multiplexing systems over multimode transmission media, active devices with arbitrary gain and electro-absorption profiles, Thulium-doped fiber applications and many more.

We introduced with VPIcomponentMaker Fiber Optics a professional design and optimization platform for fiber-based optical devices such as doped-fiber, Raman and parametric amplifiers, CW and pulsed sources, signal processing, high-power and ultrafast applications.

The new version of DSP Library as pluggable toolkit provides lab-ready algorithms developed by Fraunhofer HHI to perform a diversity of DSP functions for coherent optical systems and a wide range of modulation formats. Among them I/Q imbalance correction, blind CD estimation and compensation, data-aided channel equalization, clock recovery and deskew, carrier frequency and phase recovery, polarization demultiplexing, and PMD compensation.

Set up an appointment with one of our experts for a live presentation.

VPIlinkConfigurator™ v 3.5

VPIphotonics is proud to present the new VPIlinkConfigurator Version 3.5, a versatile software tool for optical link engineering including automatic equipment placement and configuration and a thorough system wide performance assessment. It supports equipment configuration of complex networks including ROADMs and detailed performance calculation of true ring topologies.

Version 3.5 provides means for notification of design flaws via new Check Constraints feature, and the automated insertion of regeneration points and repeater huts. Graph View now permits visualization of link and channel parameters. The import of network topology data from a file simplifies the process of defining links, nodes and traffic demands. Furthermore, user interface improvements simplify the creation and maintenance of an item library and improve the design workflow.

Set up an appointment with one of our experts for a live presentation.

Consulting Services and R&D Activities

Learn more about VPI's Consulting and R&D activities! VPIphotonics partners with public research institutes, industry and universities to develop advanced solutions for the design and optimization of future photonic networks. These activities range from component design to network planning.

  • SASER - Technologies for secure and flexible high-capacity networks

    VPIphotonics teams up with industry and academia in the framework of the Celtic+ project SASER (Safe and Secure European Routing) ADVAntage-Net. Goal of the project is to design the technologies supporting the development of secure, flexible and high-capacity optical networks.

  • OCEAN - OOFDM for cost-effective access networks

    VPIphotonics teams up with Bangor Universtity, Fraunhofer Heinrich-Hertz-Institute and other partners from industry in frame of the European PIANO+ project OCEAN (OOFDM for Cost-Effective Access Networks). Goal of this international research project is the development of the first commercially exploitable >20Gb/s OOFDM transceiver modules for deployment in WDM-PON.

  • GRIFFON - Development of an green optical network

    VPIphotonics teams up with ACREO Swedish ICT, Aston University and KTH, Royal Institute of Technology in the framework of the project GRIFFON (Green Initiative for Future Optical Networks). The overall scientific objective of this project is to develop an fibre optic coherent communication system with increased capacity and distance (over 300 km) at low operating cost and reduced power consumption based on an ultra-long 2nd cascade fibre Raman amplification with supressed polarisation impairments.

  • ICONE - Coherent Optical Networks

    VPIphotonics teams up with ACREO, Aston University, DTU, KTH, UCL and other academic and industry partners in the framework of the project ICONE (Allied Initiative for Training and Education in Coherent Optical Network). The overall objective of this initiative is to train early stage as well as experienced researchers on advanced photonic communication systems.

University Program

VPIphotonics supports 140+ universities and non-profit research centers around the world to simulate photonic applications, perform classroom demonstrations, and investigate new designs. The VPIphotonics University Program offers academic software licensing and training discounts, flexible licensing options and course material development.

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 our modeling and analysis tools. The material consists of individual modules that are customizable and extendable.

Sophisticated simulation setups can be exported from VPIphotonics design tools, easily distributed as dynamicDataSheet™ (dds), and run in the free simulator VPIplayer. This empowers engineers and teachers to present their ideas to colleagues and students. VPIplayer comes with a powerful simulation engine and generates results on flexible data analyzers. Interactive settings allow adjusting parameter values via predefined sliders.