RSoft Photonic CAD Suite 2026: Advanced Photonic Device Design Software
RSoft 2026 is the latest release of Keysight’s comprehensive photonic device simulation suite, featuring a new Topology Optimizer for inverse design, enhanced GPU-accelerated FullWAVE FDTD (up to 3× faster for dispersive simulations), expanded BSDF utilities, and seamless integration with Keysight ADS Photonic Designer for end-to-end PIC workflows .
Key New Features in 2026
Topology Optimizer (Inverse Design)
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Freeform Inverse-Design Tool: Built directly into the RSoft CAD environment, enabling automated generation of optimal photonic structures based on user-defined performance objectives
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No Predefined Structures Required: Eliminates manual iteration through design variations; supports binarization, design-rule checks, and multi-case test definitions
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Complex Geometry Exploration: Enables design of structures such as MMI couplers and other integrated photonic components
GPU-Accelerated Performance
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Up to 3× Faster Simulations: Enhanced FullWAVE FDTD reduces initialization time and minimizes pre/post-processing overhead for dispersive simulations
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Extended GPU Support: Now supports both 3D and 2D FDTD simulations for faster analysis across broader device geometries
BSDF Generation & Analysis
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Resume Function: Automatically recovers incomplete simulations for improved stability during large-scale BSDF dataset generation
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Expanded BSDF Viewer: Visualize transmission, phase, wavelength, angle, and order dependencies using line, contour, or polar plots
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Bidirectional Converters: Support open-format data exchange for integration with external workflows or measurement-based datasets
Workflow Integration
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Custom PDK Utility: Enables seamless connectivity between RSoft Photonic Device Compiler and Keysight ADS Photonic Designer
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Automated Model Cell Generation: Supports passive, S-matrix-based components with simulation data, layout, and symbols for custom device libraries, IP libraries, and foundry PDKs
