The OptiFDTD software has seven interdependent modules:

  • OptiFDTD_Designer—Create the photonic devices to model
  • OptiFDTD_Simulator—Perform the FDTD simulation and DFT analysis
  • OptiFDTD_Analyzer—Post-process the simulated data
  • FDTD Band Solver—Generate band diagram for photonic crystal
  • PWE Band Solver– Band diagram analysis by PWE method
  • Cross Section Layout Designer– Design Layout Cross Section and perform mode analysis
  • Tool Box- Allows different post-date analysis

This lesson describes how to start using OptiFDTD to perform FDTD simulation. The procedures are:

  • Create a new project
    • —   Opening OptiFDTD_Designer
    • —   Initializing the project
    • —   Opening the Waveguide Profile Designer
    • —   Defining the material
    • —   Defining the 2D and 3D channel profile
    • —   Setting up the initial properties
  • Create a design
    • —   Drawing a Linear Waveguide
    • —   Drawing a Ring Waveguide
  • Set up the Input Plane
    • —   Inserting the Input Plane
  • Observe the Refractive Index Distribution
    • —   Observing the Refractive Index Distribution
  • Set up observation points, areas, and lines
    • —   Setting up an Observation Point
  • Run the simulation
    • —   Setting up the simulation parameters
    • —   Running the 32bit simulation
  • Analyze the simulation results
    • —   Opening OptiFDTD_Analyzer
    • —   Analyzing the results
    • —   Calculating the Mode Overlap Integral (MOI)
    • —   Calculating the Input Overlap Integral (IOI)
    • —   Calculating the Input Overlap Integral Scanner (IOIS)
    • —   Calculating the Far Field Transform
    • —   Performing the Observation Object Analysis
  • Export results
    • —   Exporting results