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VPIphotonics Design Suite™ – New version 11.4!

VPIphotonics Design Suite Version 11.4 provides access to professional application-specific simulation tools and pluggable toolkits. They offer flexible usability, design process, and data analysis capabilities.

Version 11.4 advances the simulation and design flow for many applications: DSP and equalization, free-space optics, LiDAR technologies, Raman for wideband systems, semiconductor lasers and SOAs, and more.

Our software solutions have been proven by commercial companies and educational institutions who have utilized them to win and successfully execute many research and design projects. With the improved capabilities provided in Version 11.4, our design suite is set to deliver the same outstanding results in the future.

Photonic Design Environment (PDE) of Version 11.4

Photonic Design Environment (PDE) of Version 11.4


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Among the new Modeling Capabilities of version 11.4 are

  • Atmospheric Channel Model – Greatly enhanced FSO channel module for airborne and terrestrial links, ground-to-satellite and satellite-to-ground links

  • Inter-satellite Channel Model – New FSO channel model for inter-satellite links accounting for pointing jitter and the Doppler effect

  • Phase Screens Model – New atmospheric channel model using the phase screens approach accounting for wavefront distortions of the received beam

  • FSO Link Budget – Macro for automated FSO link budget calculation based on the channel parameters

  • Far-field Visualization – Enhanced coupler modules enable the visualization of optical beams with narrow angular spectra

  • Multimode Fibers – Extended solvers to specify attenuation or background loss as a function of frequency for a subset of selected modes

  • Multi-section Device Structures – New macro simplifying the design and analysis of semiconductor lasers, SOAs, and other multi-sectional optoelectronic devices

  • FMCW LiDAR – Frequency-modulated continuous wave LiDAR system and related solutions: a tunable Sampled-Grating Distributed Bragg Reflector (SG-DBR) laser and a 2D beam-steering system employing an optical phased array (OPA)

  • SHG in PPLN – New experimental module for second harmonic generation in a periodically poled lithium niobate waveguide

  • FFE & DFE – Updated feed-forward and decision-feedback equalization capabilities enabling optimum operation for PAM-M signals

  • Volterra Equalizer – Dedicated 2nd order Volterra equalizer module for easy access

  • DSP: FFE & DFE – DSP library with FFE and DFE algorithms now operating at any sample-per-symbol in data-aided and decision-directed modes

  • Reference Data for DSP – New module that obtains a reference signal for data-aided mode FFE/DFE from any point of the digital transmitter

  • DSP: FIR Filter – Updated algorithm to support real- and complex-valued FIR filter taps and optionally enabled automatic delay

  • DSP: Gardner CR – New Modified Gardner clock recovery algorithm for high clock frequency mismatches

  • OFC-based WDM – Demonstration of optical frequency comb-based coherent WDM system


  • Raman Pump Optimizer – Enhanced module to support pump wavelengths optimization for disjoint spectral ranges

  • Enhanced Raman Data – New macro and sample data file using the Kramers-Kronig relations to calculate the polarization-(in)sensitive Raman scattering contribution to the nonlinearity coefficient from the gain spectrum

Among the new Design Environment and Signal Analysis features of version 11.4 are

  • Labeled Links – A new way to interconnect module ports assigning labels to links; sophisticated label syntax to describe connections to multi-ports concisely

  • Message Filtering – New filter option in the Message Log panel to separate messages based on the executed simulation

  • Duplicate Schematic Parameters – Create a copy of a schematic parameter, preserving attributes such as type, unit, and value

  • Strip Modules from a Link – Strip selected modules from a link via the context menu, preserving the connectivity between modules

  • Images – Add images on a schematic via copy & paste and rotate them

  • Trace Manipulation in Analyzer – Add new traces as a combination of existing ones using mathematical operations; update newly added traces

  • Python Library – Experimental Python library for optical and electrical signals simplifies the creation of custom modules and data interchange solutions

Version 11.4 provides access to more than 900 ready-to-run simulation setups. We added over 20 new and improved demo examples to illustrate the application of the new features and modules.

Design Example – ROPA in Ultra-Long Repeaterless Transmission

This simulation setup demonstrates the transmission of 10 x 28 Gbaud DP-16-QAM channels in the C band over a 300 km repeaterless ultra-long system consisting of two fiber spans and a doped fiber amplifier placed between them.
The pump power of the remote gain unit remains nearly constant in the investigated range of transmitter power, thus allowing the usage of a system-level amplifier model.
The detailed design of the remotely pumped doped amplifier demonstrates a related setup.

Setup and Results for repeaterless WDM transmission over 300km
Setup and Results for repeaterless WDM transmission over 300km

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