BeamLab is an award-winning set of simulation tools for beam propagation through optical devices and waveguides in your familiar MATLAB® environment. BeamLab provides utmost flexibility in post-processing and editing of any output data and graphs. BeamLab consists of two solvers, the BPM Solver and the Mode Solver. Both allow for analyzing beam propagation in waveguides as well as free space, and computing eigenmodes of waveguides with arbitrary cross-sections. BPM Solver implements a beam propagation solver based on the Finite Difference Beam Propagation Method (FD-BPM), and Mode Solver implements a waveguide eigenmode solver based on the Finite Difference Method (FDM). Solving complex optical problems has never been easier!
New BeamLab 2.4 (December 2022) — Fiber characterization made easy! Learn more »
Intuitive user interface based on the powerful MATLAB® environment
High flexibility in waveguide design and post-processing of any output data
Extensive visualization options for videos and print-ready plots
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.
%% Input parameters for BPM simulation
gridPoints = [200 200];
gridSize = [100 100];
lambda = 1.55;
indexFunction{1} = @(b) homogeneous(b,200,1);
indexFunction{2} = @(b) singlecore(b,4800,[50 50],1.46,1.45);
inputField = @(b) gaussinput(b,[15 15],...
'Shift',[15 0 200],'Angle',[5 90]);
%% Create beamProblem
beamProblem = beamset(gridPoints,gridSize,lambda,...
indexFunction,inputField,...
'Video',true,'IndexContour','all');
%% Start BPM calculation
bpmData = bpmsolver(beamProblem);
Application examples encompass a large variety of propagation scenarios for both bulk and waveguide optics including lenses, gratings, apertures, couplers, splitters, multiplexers, and modulators.
Photonic Crystal FiberBeam propagation in a photonic crystal fiber
View demo
Spiral WaveguideBeam propagation in a waveguide wrapped around a straight waveguide
View demo
SplitterBeam propagation in a waveguide splitter
View demo
Fiber ModesEigenmode calculation of an optical fiber
View demo
Fiber DispersionDispersion evaluation of an optical fiber
View demo
Directional CouplerBeam propagation in a co-directional waveguide coupler
View demo
Multimode Interference CouplerBeam propagation in a 2D/3D MMI coupler
View demo
Mach-Zehnder ModulatorBeam propagation in a Mach-Zehnder modulator
View demo
Rib Waveguide ModesEigenmode calculation of a rib waveguide
View demo
Spatial FilterBeam propagation through a spatial filter removing random phase fluctuations
View demo
Nonlinear Self-focusingSelf-focusing of a high-power Gaussian beam in a nonlinear medium.
View demo
Meander WaveguideBeam propagation in a sinusoidally oscillating waveguide
View demo
After testing 13(!) programs, I found BeamLab the simplest for simulating graded index waveguides in complex geometries. Working within the MATLAB environment makes the design and analysis using BeamLab easy and flexible.
We do most physical calculations in MATLAB and found that BeamLab is the best toolbox for the simulation of laser beam propagation!
Your toolbox is really great and I really thank you for your help during my project!
