Application Examples

  • Wavelength Minimization at Traffic Grooming

    Automated approach of optimization
    to traffic grooming in DWDM Networks

    Do you need to optimize the number of wavelength/optical channels required to carry client connectivity services over the whole DWDM network according to engineering rules to meet system requirements? Dmitry Khomchenko, the product manager of VPIlinkDesigner™ and VPIlinkConfigurator™ at VPIphotonics™, demonstrates the automated approach to traffic grooming in VPIlinkConfigurator.

  • Design of Tunable Laser Diode

    How to Simulate
    Multisection Semiconductor Lasers
    with VPI Design Suite

    As part of VPIphotonics Design Suite™, VPIcomponentMaker™ Photonic Circuits can help you model some advanced multisection semiconductor devices. In this video, we demonstrate how to simulate a three-section tunable laser diode using our software. We first describe the fundamentals of the Photonics TLM module. Then, we show how to create such a structure using VPIphotonics Design Suite. And finally, we explain how to do the characterization of the simulated device with the help of the Characterize Laser macro.

  • Design of Simple Passive Photonic Circuits

    Trilogy PAM-4 Transmitter – Part 1:
    Schematic creation, parameter editing, sweeps and optimization

    In the first episode of our video trilogy, we demonstrate how to use VPIcomponentMaker™ Photonic Circuits as part of VPIphotonics Design Suite™ to simulate a PAM-4 transmitter. We cover the main software functionality and guide you through a design of a simple Mach-Zehnder modulator. Moreover, we create schematic parameters, perform a parameter sweep, and optimize the design.

  • Design of Hierarchical Photonic Circuits

    Trilogy PAM-4 Transmitter – Part 2:
    Hierarchical structures with galaxies, parameter expressions and scripts

    In the second episode, we create a dual-parallel Mach–Zehnder modulator to serve as a basis for a final design of the PAM-4 transmitter, using VPIcomponentMaker™ Photonic Circuits as part of VPIphotonics Design Suite™. We demonstrate how to make a hierarchical design with the help of the regular galaxies, add galaxy parameters, and define them using mathematical and Python expressions as well as initialization scripts in parameter settings.

  • Design of Active and Hybrid Photonic Circuits

    Trilogy PAM-4 Transmitter – Part 3:
    Simulation domains, multiple runs and visualization

    In the third episode, we finalize our design of the PAM-4 transmitter, using VPIcomponentMaker™ Photonic Circuits as part of VPIphotonics Design Suite™. We discuss time domain and hybrid time-and-frequency domain simulations, resolve deadlock issues, carry out simulations with multiple runs, and visualize an eye diagram of our transmitter.

  • DMT Transmission using LabExpert and Tektronix AWG & Scope

    Laboratory experiments made easy:
    How to validate simulation results in your lab and to make the best of automated simulation

    In this video, we show how to use VPIlabExpert™ as part of our VPIphotonics Design Suite™ to transmit a discrete multitone (DMT, real-valued OFDM) signal through a real link accessing lab equipment like a Tektronix 70000 series AWG and a Tektronix DPO70000SX oscilloscope here. We further demonstrate how you can perform bit-and-power loading by controlling schematic runs with a Python script to increase the system capacity while ensuring a minimum performance metric for all the subcarriers.

  • Wavelength Allocation Made Easy

    How to Optimize Add/Drop Equipment Configuration

    Need to configure your add/drop equipment and allocate wavelengths for a new network or a network upgrade? Dmitry Khomchenko, the product manager of VPIlinkDesigner™ and VPIlinkConfigurator™ at VPIphotonics™, shares tips on how to delegate all the time-consuming tasks (like reusing previous equipment and minimizing link loading) to the design automation tool available in VPIlinkConfigurator.

  • EOE System Simulation with ADS

    Electrical-Optical-Electrical (EOE) System
    Simulation with PathWave ADS

    Keysight Technologies and VPIphotonics have partnered to create the industry first electrical-optical-electronic (EOE) solution to test an end-to-end link. This video will cover what the solution is and how it works through a quick demo.

  • Design CV-QKD systems using a classical simulation framework

    Highlights of talk given at the EPIC World
    Industrial Quantum Photonic Technology
    Summit in Barcelona in June 2019

    Dr. Igor Koltchanov, Director Technology, is presenting the highlights of his talk given at the EPIC World Industrial Quantum Photonics Technology Summit 2019. The video explains how a classical simulation framework can be applied for modeling quantum communications with focus on weak-coherent CV QKD protocols.

  • Nonlinearity Mitigation - Twin Waves

    Nonlinear Noise Cancellation Using Phase-Conjugated Twin Waves:
    How to combat Kerr induced distortions

    Ksenia Goroshko, an optical engineer at VPIphotonics, explains how to mitigate fiber nonlinearities using the twin waves technique. She demonstrates the power of this method by running an exemplary schematic in the simulation software VPIphotonics Design Suite™ for different parameter settings.

  • 400G Transceiver Design

    Next-generation high-speed transceivers:
    Solving the dilemma of more capacity and less cost

    VPItransmissionMaker™ Optical Systems accelerates the design of new photonic systems and subsystems for short-range, access, metro and long-haul optical transmission systems and allows technology upgrade and component substitution strategies to be developed for existing fiber plants.

  • Design of Complex Photonic Integrated Circuits

    Versatility in modeling and optimization of PICs

    VPIcomponentMaker™Photonic Circuits is a simulation and design environment for modeling photonic integrated circuits (PICs). It provides advanced device libraries integrated with a scalable time-and-frequency-domain simulation framework enabling fast and accurate modeling of large-scale PICs with a mix of photonic, electrical and optoelectronic devices.

  • PIC design with VPItoolkit PDK and PhoeniX Software

    Connectivity for design flow and manufacturing automation

    See the video below for more details about how to export a circuit designed with VPItoolkit™ PDK HHI into PhoeniX OptoDesigner.


  • Parameter Watch

    Make parameter expression creation a breeze

    Denis Kruchkov, the development leader at VPIphotonics, explains how to use the Parameter Watch functionality of VPIphotonics Design Suite™to simplify the task of validating parameter values of complex expressions. The feature is useful for debugging and optimizing designs.


Interviews, Conference and Seminar Recordings

  • CLEO Technology Showcase

    New Interoperable Software Platform for the Design of Photonic Devices

    As a leader in photonic design automation for components, systems and networks, we will introduce a new interoperable software platform for the design of photonic devices, empowering researchers to explore new designs for photonic integrated circuit (PIC) passive components and optical fibers. This new platform streamlines the migration of device-level simulation data into a circuit-level simulator for the design and optimization of PICs. We will give an overview of the new platform and describe how it fits into our current ecosystem of photonic design and simulation tools.

  • OIDA Sponsored Webinar

    Automated PIC Modelling:
    A Photonic Neural Network Use Case

    As the complexity of Photonic Integrated Circuits (PICs) continues to grow, testing environments become more complicated. In this webinar, we will present several simulation testbenches prepared for visualizing typical measurement characteristics. The examples we will discuss include methods for group index verification, simulation of passive circuit transfer functions, characterization of SOAs, and evaluating the transfer characteristic of an Activation Unit for a Photonic Neural Network. These examples will all be demonstrated live using the photonic design automation (PDA) software VPIcomponentMaker Photonic Circuits.

  • PIC Magazine Interview

    PIC Magazine talks with Chris Maloney, Director of Business Development at VPIphotonics


  • Bridging the Gap between Electronic and Photonic Design

    Talk at AngelTech Virtual Live II, 2nd November 2020

    We present an environment supporting top-level co-design of complete Electrical-Optical-Electrical (E-O-E) interconnect solutions and co-simulation of integrated electrical and optical components and sub-circuits. This is enabled by dynamic communication and seamless data transfer between electronic and photonic design tools. Quick behavioral models (based on IBIS-AMI) of complex electrical circuits are combined with detailed optical and electro-optical models for lasers, optical modulators, fibers, etc. that operate at different abstraction levels. The detailed modeling of purely electrical components (e.g. drivers, TIAs, equivalent circuits of EO / OE components) into this hierarchical design flow is enabled by integrating a SPICE simulation engine.

  • OIDA Sponsored Webinar

    Paving the Way for InP Photonic Integrated Circuits from Concept to Tape-out

    Streamlining the design process, shortening the development cycle, and reducing the transition to manufacturing remain some of the most demanding requirements for photonic integrated circuit (PIC) designers. During this webinar, Infinera and VPIphotonics will present a design and fabrication workflow for InP PICs developed to address these needs. The workflow is based on the Infinera Process Design Kit (PDK), which includes devices optimized to ensure the best performance and yield within Infinera's InP foundry. VPIphotonics and Infinera collaborated to develop compact models for these PDK building blocks to allow for rapid prototyping of application-specific PICs. Join our webinar to learn how to start your PIC design with a graphical circuit representation and system simulation in VPIphotonics' software environment and smoothly proceed with physical layout implementation, verification, and fabrication by Infinera's InP foundry.

  • Application-Specific Design and Validation of Photonic Integrated Circuits

    Talk at PIC International Online Summit, 19th May 2020

    Versatile design tools for integrated photonics and optoelectronics need to support a diversity of technologies addressing very different types of applications. We discuss stringent requirements imposed on them: PICs of increasing size and complexity require circuit-level simulators supporting hierarchical topologies and automation of circuit design. PIC performance testing in target application scenarios requires the seamless integration of circuit- and system-level design tools. An automated design of EO/OE interconnect solutions, especially of importance for telecom and datacom, requires dynamic communication and seamless data transfer between electronic and photonic design tools.

  • Scalable design of integrated photonic and optoelectronic circuits

    Talk from Dr. Andre Richter at PIC International Conference on 10th April 2018 in Brussels

    Efficient and convenient solutions for electronic photonic design automation (EPDA) present fundamental prerequisites for the fast and innovative development of next-generation integrated photonic and optoelectronic circuits. In the talk held at PIC International 2018 in Brussels (Belgium) we demonstrated how a layout-aware schematic-driven methodology enables the rapid prototyping of new design concepts, including parameter optimization of photonic and electronic parts, analysis of manufacturing tolerances, and comparison of technology and integration alternatives to highlight progress in this area.

  • Mastering challenges

    Interview with Jim Farina at NGON US 2016

    The NGON US team interviewed Jim Farina, director of technical services at VPIphotonics™ – he spoke about VPIphotonics, the key challenges the company is currently facing, his opinion on the state of the North American market, and also the importance of events like Next Generation Optical Networking for the industry as a whole.

  • Conference Talk at 25th ONDM, presented on 1 July 2021

    Transmission-Aware Bandwidth Variable Transceiver Allocation in DWDM Optical Networks

    Talk presented by Dmitry Khomchenko on 1 July 2021 at ONDM 2021.

    This presentation addresses the transmission-aware transceiver allocation problem of flexible optical networks for a multi-period planning. The proposed approach aims at assigning the best configuration of bandwidth variable transceivers (BV-TRX) considering the amplifier noise and nonlinear channel interferences using the incoherent Extended Gaussian Noise (EGN) model. The proposed solution improves the network throughput and spectrum utilization in the early planning periods and allocates lower number of BV-TRXs in later periods in comparison to algorithms presented recently. A heuristic approach to regenerator placement has also been applied achieving up to 25% transceiver and 50% spectrum utilization savings in comparison to configurations without regenerators.

  • Fabrication tolerance-aware schematic-driven PIC design

    Talk at AngelTech Virtual Live III, 12th April 2021

    PIC fabrication tolerances are inevitable and strongly degrade device yield, unless their impact on overall performance characteristics is considered during the design process. We present a general-purpose schematic-driven design framework that provides easy access to statistical performance techniques. By introducing a novel method that allows for the identification of critical light paths and applying automated phase compensation inside the models, the analysis of fabrication tolerances on-wafer and between wafers is significantly simplified. We demonstrate its application in several PIC designs including complex photonics-based neural networks.

  • The future is bright

    A glimpse into the crystal ball of photonic design automation
    Talk at PHOTONICS+, 18 February 2021

    In this forward looking talk given during the Photonics+ Virtual Conference and Exhibition, we discuss the future of photonic design automation and applications being enabled by design software. VPIphotonics Design Suite is an ever-evolving suite of software that is leading the industry as a result of collaborative industry and research partnerships as discussed in this presentation. In particular we discuss advancements in electrical/optical co-design for intra-datacenter links, quantum key-distribution, PIC foundry PDKs, and application specific PICs such as: optical coherence tomography, 2D beam steering for LIDAR, and plasmonic neural networks.

  • OIDA Sponsored Webinar

    Advanced DSP and Coding for Next Generation Coherent Optical Systems

    Next generation coherent optical systems are expected to deliver high data rates to meet the increase of traffic demands driven by the emergence of high-bandwidth applications, such as Internet of Things, 4K video streaming, and online gaming. Different technologies have been proposed and investigated for next generation 400G, 800G, and 1.6T systems. In this webinar, we review the most promising techniques including, advanced modulation formats and coding, fiber nonlinearity mitigation, and space division multiplexing. All demonstrations will be performed in VPIphotonics Design Suite.

  • OIDA Sponsored Webinar

    Migrating a PIC Simulation to a System Design: Silicon-Photonic Modulator in a PAM-4 Link

    Dr. Jim Farina, Chris Maloney and Eugene Sokolov show how to migrate a PIC simulation to a system design.
    Modeling and simulation at both the circuit- and system-levels are critical in the design process for optical communication, quantum key distribution, and sensing applications. Seamless migration between these two levels of abstraction will be demonstrated in VPIphotonics Design Suite. This webinar focuses on an optical communication application example by modeling a silicon-photonic modulator at the circuit-level and implementing it for simulation at the system-level in a PAM-4 link.

  • eSeminar with CST and VPIphotonics

    Design Optimization and Sensitivity Analysis of Photonic Integrated Circuits using Physical and Circuit-Level Simulations

    The use of highly-integrated photonic circuits (PICs) is on the rise, and this trend is expected to accelerate in the future.
    The design of these complex circuits involves multiple steps, starting at the component level and continuing up to the circuit level. Due to this hierarchical structure, small variations at the component level resulting from fabrication tolerances can have a significant influence on the overall circuit performance.
    This eSeminar focuses on two software packages, which combine advanced simulation of passive photonic, active optoelectronic and hybrid photonic integrated circuits and systems with highly accurate full-wave 3D photonic and multiphysics simulation.
    We will demonstrate how using VPIphotonics Design Suite and CST Studio Suite together enables engineers designing PICs to automate combined circuit level and full wave simulation. This allows the study of the effect of small variations in the components on the overall circuit, meaning that the engineer can increase yield and reliability by making the circuit resilient to such effects.

  • Automated Link Loss Compensation and Cost Effective Amplifier Placement in XHaul Optical Network

    Talk at ONDM 2020 - 24th International conference on Optical Network Design and Modelling

    D.Khomchenko, A. Richter, and J. Farina (@VPIphotonics) demonstrate an algorithmic approach that efficiently addresses the link loss and dispersion compensation and equipment allocation problem for xhaul networks. It accounts for future channel loading, optical channel path parameters, signal rate, equipment parameters, and constraints arising from the insertion points of amplifiers and DCMs. The authors demonstrate the convenient operation of their method by designing an exemplary fronthaul network system.

  • Layout Aware Schematic Driven Design Methodology for PICs

    Talk from Dr. Andre Richter at ECIO in May 2016 in Warsaw

    Fast and accurate circuit-level modeling:
    A new scalable simulation approach

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