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.
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.
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.
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.
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.
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.
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.
See the video below for more details about how to export a circuit designed with VPItoolkit™ PDK HHI into PhoeniX OptoDesigner.
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.
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.
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.
Fast and accurate circuit-level modeling:
A new scalable simulation approach