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Ansys Lumerical Multiphysics
Photonics Component Simulation Software

Seamlessly design photonic components by capturing multiphysics effects encompassing optical, thermal, electrical, and quantum wells within a unified design environment.


Unlock the Power of Multiphysics Component Design with Ansys Lumerical

Ansys Lumerical Multiphysics is the industry’s first multiphysics suite purpose-built for photonic designers. Its unified Finite Element IDE and collection of physics solvers enable designers to accurately model components where the complex interaction of optical, electrical, thermal, and quantum well phenomena is critical to performance. 

Designers can leverage the highly integrated interoperable solvers to address various designs, from photovoltaic cells and image sensors to micro-LEDs, avalanche detectors, modulators, thermal phase shifters, and more.


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    Finite Element Design Environment
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    Integrated Multiphysics Workflows
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    Comprehensive Material Models
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    Automation & Optimization
Multiphysics mqw CHARGE mLED

Quick Specs

Simplify the complexities of photonic component design by leveraging the power of seamless multiphysics workflows that accurately capture optical, electrical, thermal, and quantum interactions all within a unified design environment.

  • Waveguide Solver (FEEM)
  • Charge Transport Solver (CHARGE)
  • Heat Transport Solver (HEAT)
  • Multi Quantum Well Solver (MQW)
  • 3D Electromagnetic Solver (DGTD)
  • Advanced Optimizations
  • Comprehensive material models
  • Import STL, GDSII, and STEP
  • Automation API (Lumerical scripting language, Python and MATLAB)
  • Foundry Compatible Automated Layer Builder

JULY 2024

What's New

The Ansys Lumerical 2024 R2 brings powerful updates and features across its photonics core technologies, ecosystem, cloud and HPC, workflows, and user experience.

2024 R2 Lumerical Multiphysics direct bridge
Klayout - Lumerical Multiphysics Workflow Improvements

The integration between KLayout and Lumerical for multiphysics simulations is improved, streamlining the design process. Enhancements include waveguide port extension for straights and bends, automated port setup at arbitrary light incident angles, and a 5X performance improvement in direct bridge communication through the KLayout Python API.


Multiphysics Photonic Component Design

The suite of solvers, seamless workflows, and features in Lumerical Multiphysics enable accurately capturing the interplay of physical effects in modeling passive and active photonic components.

Ansys Interconnect LP


Key Features

Design and optimize a wide range of photonic components. 

  • Flexible and seamless multiphysics simulation workflows
  • Best-in-class analytic engines
  • Interoperability for verification of layouts from EDA tools
  • Automated foundry compatible geometry and material definition
  • Both script-driven and GUI-based design

Calculate the modes supported by the 2D cross-section of waveguides or fibers in the frequency domain for a wide range of complex geometries and materials.

  • Comprehensive material models: multi-coefficient, broadband, scriptable
  • Automatic mesh refinement based on imported heat profiles
  • Multiphysics workflows for electro-optic and thermo-optic modeling 

It self-consistently solves Poisson's and drift-diffusion equations, offering precision with automatic mesh refinement to optimize efficiency.

  • Self-consistent charge/heat modeling for capturing self-heating effects in high-current devices
  • Automatic mesh refinement based on geometry, materials, doping, and optical or heat generation
  • Import STL, GDSII, and STEP
  • Steady-state, Transient, and Small-signal AC simulation
  •  Comprehensive material models

Lumerical HEAT allows you to focus on the stability and reliability of your designs with confidence.

  • Comprehensive matetrial models
  • Automatic mesh refinement based on imported heat profiles
  • Joule heating from electrical conduction
  • Steady-state and transient heat transport

MQW combined with CHARGE, MODE and INTERCONNECT solvers enables design of lasers, SOAs, electro-absorption modulators, microLEDs, and other gain-driven active devices.

  • Wavefunction and band diagram calculation
  • Gain and spontaneous emission
  • Incorporates temperature, exciton, field, and strain effects
  • Comprehensive material model with common III-V and III-N semiconductors and customizable
  • Scriptable and available UI
  • Results used as input for compact laser models in INTERCONNECT

When accuracy is mission critical, DGTD provides superior performance, independent of geometry complexity and within a design environment engineered for multiphysics simulation workflows.

  • Comprehensive material models
  • Automatic mesh refinement
  • Far-field and grating projections
  • Self-heating modeling (CHARGE & HEAT)
  • Photovoltaic modeling (FDTD/DGTD, CHARGE & HEAT)
  • Electro-optic modeling (CHARGE & FDTD/DGTD/FDE/FEEM)
  • Opto-thermal modeling (FDTD/DGTD/FEEM & HEAT)
  • Plasmonics modeling (DGTD & HEAT)

Application Gallery

View all Photonics Applications

photonic integrated circuit diagram

Photonic integrated circuits – Actives

  • Modulators
  • Photodetectors
  •  Lasers


Photonic integrated circuits – Passives

  • Ring Resonators and more
  • Optical Switches
  • Optical filters


FEEM Product Reference Manual

The Finite Element EigenMode (FEEM) reference manual provides detailed descriptions of product features.


CHARGE Product Reference Manual

The CHARGE reference manual provides detailed descriptions of product features.


HEAT Product Reference Manual

The HEAT reference manual provides detailed descriptions of product features.


MQW Product Reference Manual

The Multi-Quantum Well (MQW) reference manual provides detailed descriptions of product features.


DGTD Product Reference Manual

The Discontinuous Galerkin Time-Domain (DGTD) reference manual provides detailed descriptions of product features.

Ansys software is accessible

It's vital to Ansys that all users, including those with disabilities, can access our products. As such, we endeavor to follow accessibility requirements based on the US Access Board (Section 508), Web Content Accessibility Guidelines (WCAG), and the current format of the Voluntary Product Accessibility Template (VPAT).

See What Ansys Can Do For You

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