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Version 2020.03

 See what's new for version 2020.03:

RSoft Photonic Device Tools
The RSoft Photonic Device Tools comprise the industry's widest portfolio of simulators for passive and active devices in optical communications and optoelectronics. New features in version 2020.03 include:
  • Extended Custom PDK model data generation to active devices such as modulators and detectors through co-simulation between RSoft Photonic Device Tools and Sentaurus TCAD. Added a new example for an improved design/simulation flow for both ring and linear modulators using RSoft Device Tools and Sentaurus TCAD

  • Extended RSoft BSDF capability to produce and use parametric RSoft BSDF files, allowing for devices to be optimized wholly within LightTools. Gratings and other sub-wavelength structures can now more easily be chirped or apodized to achieve a desired performance for applications such as AR/VR structures

  • New graphical Waveguide Mode Utility to easily automate the calculation of modal properties such as dispersion, group index, group velocity, etc to help design waveguides, both straight and bent. Also, the group index data is now automatically included in compact waveguide models produced by the Custom PDK Utility for more efficient modeling at the circuit level

  • Improvements to both BeamPROP and FullWAVE for efficient data output when modeling extremely large devices
Photonic System Tools
The OptSim and ModeSYS tools simulate the performance of optical communication system links through comprehensive simulation techniques and component models. New features in release 2020.03 include:
  • A new application note targeting long-haul telecom sector: Long-haul System Design with Remote Optically Pumped Amplifier (ROPA)
  • A new application note for the aerospace and defense sector: Linearization of analog photonic radio-over-fiber (RoF) links with high suppression of third-order intermodulation distortion (IMD3)



  • A new application note for the 5G and free-space optics markets: Receiver sensitivity comparison of NRZ and DPSK optical free-space communication systems



PIC Design Suite
New features in version 2020.03 of our PIC Design Suite, which includes the OptSim Circuit and OptoDesigner tools, are:
OptSim Circuit 
  • Enhancement to bidirectional multiport model used to characterize passive photonic device in terms of an S-Matrix, to support both non-uniform frequency and wavelength data
  • Improved simulation of compact models produced by the Custom PDK Utility. These models now include group delay data instead of phase data allowing accurate phase simulation, even with coarse data resolution
  • Four new application notes of interest to the PICs for data center
    • PAM-4 Transmitter using segmented-electrode Mach-Zehnder modulator (SE-MZM)
    • Impact of inter-segment distance deviations in SE-MZM PAM-2 transmitters
    • Impact of segmented electrode time-delay variations in SE-MZM PAM-2 transmitters
    • Impact of capacitive charge and response time of segmented electrodes in PAM-2 SE-MZM transmitters
  • Improved interface with OptSim Circuit enabling hierarchical layout designs using a freeform script structure
  • OptoDesigner can now export in the DXF file format, allowing designs to more easily transferred to other programs such as SOLIDWORKS or AutoCAD
  • Support for import and export of hdf5 data files to facilitate the storage and use of large, structured data sets
  • Dynamic code snippets that enable PDKs to always provide up-to-date die templates and examples, irrespective of tool version