Why Use RSoft BeamPROP BPM
Engineers use BeamPROP to simulate light propagation in waveguide-based devices where optical power evolution, coupling behavior, and propagation losses are critical. Built on an industry-proven beam propagation method (BPM), BeamPROP enables rapid design iteration and optimization of photonic components such as:
- Arrayed waveguide gratings (AWGs)
- Splitters and couplers
- Mode converters
- Spot-size converters
- Fiber-to-chip interfaces
- Integrated photonic circuits
By combining fast simulation with advanced waveguide modeling capabilities, BeamPROP helps reduce design iterations and evaluate performance before fabrication.
Use RSoft BeamPROP BPM for
- Simulating light propagation through integrated optical waveguides
- Designing splitters, couplers, bends, tapers, and mode converters
- Optimizing arrayed waveguide gratings for wavelength routing
- Evaluating optical power transfer between coupled structures
- Analyzing propagation loss, mode evolution, and polarization behavior
- Improving spot-size converters and fiber-to-chip interfaces
- Studying long or complex waveguide circuits where efficient propagation analysis is important
Efficient 2D and 3D BPM SimulationAnalyze light propagation in integrated and fiber-optic devices using finite-difference beam propagation methods.
Advanced Waveguide ModelingEvaluate coupling, mode conversion, bending, tapers, losses, and propagation through complex waveguide structures.
Specialized Device UtilitiesSupport common photonic design tasks such as arrayed waveguide grating development and related routing-device analysis.
Integrated Photonic Design WorkflowMove between geometry definition, simulation, parameter exploration, and optimization in the RSoft CAD Environment.
Key Outcomes
Evaluate propagation behavior without defaulting to a more computationally intensive full-wave simulation for every design stage.
Analyze mode matching and power transfer across couplers, tapers, converters, and optical interfaces.
Identify geometry and material changes that affect bending, transition, and waveguide losses.
Use BPM for predominantly forward-propagating waveguide problems, then apply a full-wave method where reflections, resonances, or multidirectional behavior require it.
RSoft FullWAVE FDTD
Use the RSoft FullWAVE FDTD simulation tool to study how light propagates in photonic structures, circuits, and nanophotonic devices.
RSoft ModePROP EME
Explore RSoft ModePROP EME, an eigenmode expansion (EME) propagation tool that accounts for both forward and backward propagation and radiation modes.
RSoft FemSIM FEM
Use RSoft FemSIM FEM design tool to calculate any number of transverse or cavity modes of an arbitrary structure on a non-uniform mesh.
RSoft MOST
Use RSoft MOST or Multi-Variable Optimization and Scanning Tool to automate definition, calculation, and analysis of photonic device optimizations and scans.
Resources to Get You Started
Learn when to use BPM, FDTD, RCWA, and other photonic simulation methods for waveguides, couplers, gratings, and integrated photonic devices. Compare simulation approaches and select the right tool for your design challenge.
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What's New in RSoft Photonic Device Tools
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Create an AWG PDK from Device to Circuit
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Hybrid Simulation with CODE V and BeamPROP Ray Tracing Tools
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Simulation of Long-Period Fiber Gratings Formed with Helical Fiber
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Simulate Mode-Evolution-Based Polarization Rotator with High-Index Contrast
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Modeling High-Power Lasers
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Efficient and Accurate BPM Simulation of a Polarization
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Designing LIDAR on a Chip
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Reflective Multimode Interference Coupler
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Studying the Mode Evolution within a Knife-Edge Taper-Based Spot Size Converter
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Designing a Mode Converter
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Arrayed Waveguide Grating Design
Have Questions? We've Got Answers
Beam propagation method (BPM) is typically used for waveguide structures where light primarily propagates in a known direction and efficient simulation speed is important. FDTD is generally preferred when modeling complex electromagnetic interactions, scattering effects, resonant structures, or strongly reflective devices.
Yes. BeamPROP includes dedicated AWG design utilities that enable efficient modeling, optimization, and performance analysis of arrayed waveguide gratings used in wavelength multiplexing and demultiplexing applications.
BeamPROP can be used to analyze spot-size converters, tapers, mode converters, and coupling structures to optimize power transfer between optical fibers and photonic integrated circuits.
Yes. BeamPROP includes advanced polarization modeling capabilities that help engineers evaluate polarization behavior in anisotropic and polarization-sensitive photonic devices.
Common applications include:
- Arrayed Waveguide Gratings (AWGs)
- Spot-size converters
- Mode converters
- Optical couplers
- Power splitters
- Fiber-to-chip Interfaces
- Passive photonic components
- Silicon photonics waveguides
BeamPROP is commonly used for waveguide-level device analysis and optimization alongside other RSoft tools for electromagnetic simulation, photonic integrated circuit design, and system-level photonics modeling.