VPIphotonics at SPIE Photonics West – Exhibition Booth 3173, 4 - 6 February in San Francisco, USA

Come and visit our modeling experts at Booth 3173!
Arrange a meeting with a member of the VPI R&D team.


  • VPIphotonics Design Suite™ v10.1

    Design Photonic Components and Compare Transmission Technologies

    VPIphotonics Design Suite accelerates the design of new photonic systems and subsystems for short-range, access, metro and long-haul optical transmission systems. Further, it supports assessment of technology upgrade and component substitution strategies that are to be developed for existing fiber plants.

    Version 10.1 offers advances in simulation and design capabilities for applications using Forward Error Correction (FEC), Digital Signal Processing (DSP), PAM4 modulation, multimode VCSELs, integrated optical modulators and more.

    For more details about the enhancements in the new version 10.1 please click here!

    Photonic Design Environment (PDE) of Version 10.1


  • VPItoolkit™ DSP Library v4.0

    Tx- and Rx-side Digital Signal Processing algorithms for coherent optical transmission systems

    VPIphotonics presents the new version 4.0 of the VPItoolkit DSP Library, a powerful set of digital signal processing algorithms developed by the Photonic Networks and Systems department at Fraunhofer HHI.

    VPItoolkit DSP Library v4.0

    New features include:

    • A data-aided cycle slip mitigation algorithm has been added, along with a new demo to showcase its functionality.
    • A new demo to show how data-aided frequency-domain equalization can be used to demodulate experimentally-obtained dual-polarization probabilistically-shaped 64-QAM.
    • New Logical Channel Synchronization function has been added to the receiver module, for symbol synchronization, I/Q polarity correction and phase and polarization ambiguity resolution.
    • Updated messaging system to provide more information on what is happening inside the function.
    • The visualizers have been updated to the new MATLAB graphics system.
    For more details about the DSP Library, please click here!


Technical Feature Presentations

Our modeling experts will provide a number of technical presentations on various design and analysis topics. Please find a short list below:

  • Optical waveguides and related devices
  • Large-scale and heterogeneous Photonic Integrated Circuits
  • Fab-specific circuit designs and export to mask layout software
  • Optical amplifiers and sources based on single- or multimode fibers
  • Lab interfaces to bridge the gap between simulations and experiments
  • Lab-proven and modulation-format independent DSP algorithms
  • Aggregation, optical access and radio-over-fiber systems
  • Power transients and dynamic network reconfiguration
  • Simplified and comprehensive link engineering
  • High-speed transmission systems with data rates of 400Gb and beyond
  • Spatial Division Multiplexing - technologies and transmission concepts

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 SPIE Photonics West 2020 Conference Program

Multimode-based short-reach optical communication systems – versatile design framework

Session 7: Photonics for Datacenter and Metro Networks (Feb-6 2020, 1:50pm - 4:20pm)
I. Koltchanov, E. Sokolov, R. Navitskaya, A. Uvarov, A. Richter (VPIphotonics)

Abstract: Short-reach transmission technologies based on multimode sources and fiber infrastructure remain highly attractive and competitive against single-mode solutions. We present here details of a versatile integrated multimode simulation framework targeting the design, analysis, and optimization of such systems. Important aspects that are addressed here are detailed multimode signal representations, mode solvers, models for signal propagation in multimode fibers, multimode VCSEL models, models to calculate the coupling between

various multimode devices, and system-level building blocks specifying and measuring the characteristics of the overall system. Besides discussing device modeling details, we present virtual test benches for measuring typical characteristics, such as the Encircled Flux of the launch system, DMD and EMBc of the multimode fibers, as well as system performance characteristics, to determine whether the simulated system and its individual components meet industry-accepted requirements.


Optical Interconnects for Datacenter Links – Design and Modeling Challenges

Session 10: Optical Interconnect Devices II (Feb-6 2020, 11:00am - 12:20pm)
A. Richter, S. Dris, I. Koltchanov, S. Alreesh, D. Yevseyenko, E. Sokolov (VPIphotonics)

Abstract: Capacity demand for network connections within and between datacenters is increasing relentlessly, fueling the need for deployment of new and improved optical communications equipment. Confronted with the task of developing innovative solutions to address this challenge, engineers must deal with and consolidate countless design choices that are influenced by a large variety of constraints. We present design examples at the system- and component-levels, illustrating the challenges in modeling, analyzing and optimizing technology choices and equipment parameters of optical interconnects for intra- and inter-datacenter applications.

We demonstrate a seamless design flow linking simulations of the electronic circuits at the transmitter/receiver with simulations of the optical fiber link, enabling investigation and optimization of the overall system performance. Further, we compare advantages and challenges of multimode infrastructure solutions utilizing, for instance, PAM-4 modulation of multi-mode VCSELs with transmission over wide-bandwidth multi-mode fibers, and single-mode solutions employing Mach-Zehnder modulators with tunable DFB lasers in WDM operation over SMF-links.


Live Product Demonstrations

Professional Services and R&D Activities

Learn more about VPI's Consulting and R&D activities! Contact us for custom design services, and training seminars on modern technologies and their adequate modeling.

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.


  • InPulse - Indium-Phosphide Pilot Line for up-scaled scaled, low-barrier, self-sustained, PIC ecosystem

    InPulse Pilot Line is an EU funded project that democratizes access to industrial prototyping and pre-production of high-performance InP photonic integrated circuits (PIC).

    InPulse provides a low entry barrier access to low and medium production volumes of InP PICs.

    InPulse has the ambition to transform business practices from vertical integration – where design, fabrication and product development are all in-house and inaccessible to new entrants, to horizontal where fabless and lab less businesses share the same manufacturing infrastructure.


  • WON - European Training Network – Wideband Optical Networks

    The project WON is a doctoral-level training network funded by the European Commission under Horizon2020 Marie Sklodowska-Curie ITN Action.

    WON goal is to train a new generation of research engineers is being achieved thanks to a doctoral level training network that will benefit from challenging interactions between industry and academia.

    Solutions identified within WON will enable full exploitation of the total capacity of optical fibres to sustain efficiently the Internet traffic growth and to overcome a possible traffic-crunch. A special focus of the research is dedicated to developing novel digital signal processing (DSP) algorithms to increase the overall system performance. WON provides cost effective and realistic solutions to current bandwidth saturation, which is progressively impairing already deployed networks.


  • OptiCON - Optimized capacity in optical networks

    OptiCON is a new R&D project funded by the German Federal Ministry of Education and Research (BMBF).
    OptiCON aims to considerably boost the capacity of optical metro and core networks.

    In particular, OptiCON's goals include expansion of mobile applications at and beyond 5G, leveraging unused optical spectrum and developing new fiber types, novel transmission schemes, and advanced monitoring and SDN control.


  • QAMeleon - Sliceable multi-QAM format SDN-powered transponders and ROADMs Enabling Elastic Optical Networks

    VPIphotonics' core technical contribution to the project will be in work package "Component and System Specifications and Requirements". The team will participate in formulating the project's use-cases, network requirements and performance indicators, defining the system and component specifications, as well as take an active role in the development of the TRx DSP algorithms that are central to the QAMeleon's technological objectives. VPI leads a task where system and component modeling and simulation takes place.

    The work that will be carried out here will constitute the first verification of the project's proposed system concepts. Heavy interaction with work packages related to components fabrication will take place to aid the design and development cycle, and ensure that performance targets are met. Furthermore, VPI will also actively support the experimental verification effort, contributing with researchers, as well as its commercial lab automation software (VPIlabExpert), in the laboratory and field trial validations of the developed technology.


  • EU Quantum Flagship Project UNIQORN - advances the next generation of quantum communication systems

    The multidisciplinary project UNIQORN will develop under the participation of VPIphotonics quantum technology for the mass market. Quantum communication systems, mostly found in research laboratories, will be squeezed into small and reliable photonic integrated circuits.

    By carefully laying out each element along the development chain from fabrication to application, the Horizon 2020 project will not only reduce size and cost, but will also bring improvements in terms of robustness and reproducibility.


  • PolyPhotonics Berlin - Optical Components from Plastic

    VPIphotonics teams up with regional enterprises and research institutes in frame of PolyPhotonics Berlin, an R&D project co-financed by the German Federal Ministry of Education and Research (BMBF). The PolyPhotonics Berlin consortium targets to establish a new versatile polymer based integration platform combined with Indium-Phosphide and thin-film filter technologies for numerous photonics applications in the global communications and sensing market.

    VPIs role in this initiative is to develop a toolbox of simulation models representing libraries of photonic and optoelectronic building blocks. This toolbox may serve as basis for project partners and external users when designing and verifying complex photonic components and integrated circuits that are to be manufactured by the PolyPhotonics Berlin consortium.