BeamLab is an award-winning set of simulation tools for beam propagation through optical devices and waveguides in your familiar MATLAB® environment. Examples encompass a large variety of propagation scenarios for both bulk and waveguide optics including lenses, gratings, apertures, couplers, splitters, multiplexers, and modulators.

New release v1.1: Now with material database and parallel computing (September 2017)

Unlimited Plotting Options

Simple Coding

The following few lines of code produce a video that shows the light vortex in a multimode fiber generated by a Gaussian beam at oblique incidence and slightly offset from the fiber axis.

Key Features

  • MATLAB® toolboxes implementing a Beam Propagation Method (BPM) solver and a waveguide mode solver
  • Intuitive user interface based on MATLAB® – no hassle with learning a new proprietary language
  • Full-vectorial and semi-vectorial beam propagation and mode analysis based on the finite difference method
  • 3D or 2D analysis
  • Wide-angle and nonlinear beam propagation
  • Different types of boundary and symmetry conditions
  • High flexibility in waveguide and input field design with steadily growing library of easy-to-use functions
  • High flexibility in implementing various parameter sweeps and optimization problems1
  • High flexibility in post-processing and editing any output data and graphs to your liking
  • Parallel computing using multicore processors and computer clusters2
  • Extensive plotting and visualization options
  • Platform-independent (Windows, macOS, Linux)
  1. For advanced optimization problems BeamLab supports the MATLAB® Optimization Toolbox™.
  2. Requires MATLAB® Parallel Computing Toolbox™.


Photonic Crystal Fiber

Beam propagation in a photonic crystal fiber
View demo

Spiral Waveguide

Beam propagation in a waveguide wrapped around a straight waveguide
View demo


Beam propagation in a waveguide splitter
View demo

Fiber Modes

Eigenmode calculation of an optical fiber
View demo

Fiber Dispersion

Dispersion evaluation of an optical fiber
View demo

Directional Coupler

Beam propagation in a co-directional waveguide coupler
View demo

Multimode Interference Coupler

Beam propagation in a 2D/3D MMI coupler
View demo

Mach-Zehnder Modulator

Beam propagation in a Mach-Zehnder modulator
View demo

Rib Waveguide Modes

Eigenmode calculation of a rib waveguide
View demo

Spatial Filter

Beam propagation through a spatial filter removing random phase fluctuations
View demo

Nonlinear Self-focusing

Self-focusing of a high-power Gaussian beam in a nonlinear medium.
View demo

Meander Waveguide

Beam propagation in a sinusoidally oscillating waveguide
View demo

Your Benefits

  • Flexible licensing models: Buy BeamLab for 3, 6, or 12 months or as a subscription.
  • Priority support: As a customer you will receive priority support, first in line!
  • 30 day money back guarantee: Should you not be fully satisfied with BeamLab you will receive a full refund.