VPIphotonics Design Suite 11.7: Professional Photonic Design & Simulation Software

VPIphotonics Design Suite 11.7 is the latest version of the industry-leading photonic design automation (PDA) platform, released in March 2026 . It delivers significant advancements in datacom, laser satcom, fiber sensing, and integrated photonics applications .

Key New Features in Version 11.7

Datacom & High-Speed Transmission

• 100G-DR-LPO Reference Design: Complete system simulation compliant with 100G-DR-LPO MSA, including FFE/DFE-based SerDes equalizers and CTLE for analog electrical driving

• Multi-Level PAM Support: New electrical PAM transmitter supporting arbitrary PAM levels (PAM-3, PAM-6, PAM-8) for 200 Gb/s O-band DCI applications

• EGN-ISRS Model: Enhanced Gaussian Noise model accounting for inter-channel stimulated Raman scattering, dispersion slope, and span coherence

• EEPN Analysis: Sources of equalization-enhanced phase noise in high-bandwidth long-haul links

• 800G ZR+ CD Compensation: Refined CD compensation algorithm for high-bandwidth coherent links

Fiber Sensing & Distributed Acoustic Sensing

• Fiber Rayleigh Backscattering Module: New module for Distributed Fiber Optic Sensing (DFOS) with time-resolved backscattering, multiple fiber spans, discrete events, bidirectional propagation

• φ-OTDR for DAS: Phase-sensitive OTDR system for distributed acoustic sensing with coherent reception

• Conventional OTDR Demo: Study of fiber attenuation, Rayleigh backscatter coefficient, and event parameters on OTDR curves

Integrated Photonics (PIC) & Optoelectronics

• Thermal Effects Simulation: PID-based feedback control for thermally stabilized MRM with auto detuning compensation

• PhotonicsTLM Structure Visualization: Enhanced macro for specifying current/voltage contacts

• Netlist Import/Export: Automated conversion between simulation schematics and netlists

• SmatrixMeasuredEl Module: S-matrix support with custom parameter dependencies for electrical properties

• Optimized IIR Filter Design: Faster execution of integrated photonic component modules (ModulatorMicroRing, Waveguide, etc.)