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Ansys Lumerical FDE
Getting Started (Self-paced Learning Available)

Course Overview

This course introduces the finite-difference eigenmode (FDE) solver that is part of MODE. It is primarily intended for beginner to intermediate users, with a focus on providing practical examples to common tasks. The course covers frequently used features with the goal of giving users an understanding of the solver physics, simulation workflow and data analysis techniques.


  • Basic understanding of electromagnetism and mode/waveguide theory.

Teaching Method

Lectures and demos. A major emphasis is placed on balanced mix of basic theoretical knowledge and helpful practical examples that will allow new users to quickly become proficient and productive with FDE.

Learning Outcome

Following completion of this course, you will be able to;

  • Understand how the FDE algorithm works and when the method can be used
  • Add, define and fine tune material properties
  • Set up FDE solver and run the simulation
  • Analyze, plot and export simulation results
  • Explain what convergence testing is and why it is necessary
  • Calculate mode overlap
  • Run frequency sweep analysis
  • Find information about script commands used for FDE analysis

 Available Dates

Learning Options

Training materials for this course are available with an Ansys Learning Hub Subscription. If there is no active public schedule available, private training can be arranged. 

Self-paced Learning 

Complete a class on your own schedule at your own pace. Scope is equivalent to Instructor led classes. Includes video lecture, workshops and input files. All our Self-Paced video courses are only available with an Ansys Learning Hub subscription.


This is a 1-day classroom course covering both lectures and workshops. For virtual training, this course is covered over 2 x 2-hour sessions lectures only.

Virtual Classroom Session 1

Module 1: My first simulation

  • Introduction 
  • Setting up the simulation
  • Running the simulation
  • Analyzing results
  • Application examples

Module 2: Solver physics

  • Solver algorithm
  • Overlap and frequency sweep

Module 3: Material

  • Introduction
  • Material database
  • Material explorer

Module 4: Solver region

  • Introduction
  • Solver region settings
  • Setup tips

Virtual Classroom Session 2

Module 5: Analyzing simulation results

  • Analysis mode and workflow
  • Analysis tabs
  • Convergence testing
  • Special script commands for working with FDE data

Module 6: Application Examples