Examples

With BeamLab you can solve a wide range of different beam propagation and waveguide analysis problems. Here you can find a few selected examples. In BeamLab’s demos directory you can find these and additional examples.

Beam Propagation Toolbox

Mode Solver Toolbox

Additional Examples Included in BeamLab

  • Fiber Optics

Graded-index Waveguide (Full-vectorial BPM)

Full-vectorial beam propagation in a multi-mode circular graded-index waveguide

Photonic Lantern

Beam propagation in a photonic lantern with vanishing cores

Fiber Taper

Mode size conversion by means of a taper

Fiber Collimator

Beam propagation between two fiber collimators

Fiber Coupling Efficiency

Coupling efficiencies of a laterally offset Gaussian beam to the three lowest-order modes of a multimode fiber

Multicore Fiber with Index Trench

Beam propagation in a multicore fiber surrounded by an index trench

Fiber Loop

Beam propagation through a fiber loop

Fiber Bend Modes

Eigenmode calculation of an optical fiber with a bend

Fiber Bend Loss

Calculation of the propagation loss in a bent fiber

  • Couplers

Multimode Interference Coupler (2D)

Beam propagation in a 2D MMI coupler

Parameter Sweep of Multimode Interference Coupler (2D)

Beam propagation in a 2D MMI coupler with parameter sweep

Optimization of Multimode Interference Coupler (2D)

Beam propagation in a 2D MMI coupler with optimization

Tapered Coupler

Beam propagation in a tapered mode-selective coupler

  • Planar Waveguides

RGB Beam Combiner

Beam propagation in an integrated silica RGB beam combiner

Mach Zehnder Interferometer

Beam propagation in a Mach-Zehnder modulator

Rib Waveguide Splitter

Beam propagation in a polymer rib waveguide splitter

  • Freespace Optics

Freespace Beam Propagation

Propagation of a Gaussian beam in free space

Freespace Beam Propagation with Collimating Lens

Collimation of a diverging Gaussian beam by an ideal lens

Freespace Beam Propagation with Vortex

Transformation of a Gaussian beam to a helically phased beam and back to a Gaussian beam

Freespace Beam Propagation with Multiple Slits (2D)

Propagation of a Gaussian beam through multiple slits

Freespace Beam Propagation with Grating (2D)

Propagation of Gaussian beam through a sinusoidal grating

Quarter-wave Plate

Propagation of a Gaussian beam with circular polarization through a quarter-wave plate

Freespace Beam Propagation with Prisms

Deflection of a Gaussian beam by several ideal prisms

Three Beam Interference

Propagation of three Gaussian beams in free space

Non-interfering Beams

Propagation of two orthogonally polarized Gaussian beams in free space

  • Imaging

Imaging Through a Single Lens

Imaging of an object through a single lens with magnification M

Imaging Through a Single Lens with Aberrations

Imaging of an object through a single lens with aberrations defined via a Zernike phase screen

Imaging Through a 4f Optical System

Imaging of an object through a 4f optical system with different filter types

Imaging Based on the Principle of Phase Contrast Microscopy

Imaging of a pure phase object through a 4f optical system using the principle of phase contrast microscopy