About BPM:
 The
Beam Propagation Method (BPM) is one of the modules OlympIOs offers for
simulating the propagation of light through planar waveguide structures.
For low to medium index contrast, the BPM module allows fast and accurate
2D and 3D simulations. Users can define waveguide structures of their
choice using the extensive optical element library. The library can be
further extended to include user defined, custom elements (external elements).
Complete parameterization means various design options can be analyzed,
quickly and automatically. Once the basic waveguide structure is optimized,
the basic waveguide component is easily incorporated within a complete
mask layout, as the mask module uses the same method of structure definition.
Features:
- 2D and 3D BPM simulations
- Wide angle 2D-BPM
(2nd and 4th order Padé approximation)
- Novel 5-point BPM
(less sensitive to lateral discretization)
- Field analysis
and manipulation capabilities
- Second order non-linearity
Generic
simulation features:
- Extensive parameterization
capabilities
- Vary runs
- Material library
Application
examples
The following application notes demonstrate the use of our BPM module
for the optical performance simulation of planar waveguide components:
 Arrayed
Waveguide Grating
Thermo-optic
DOS switch
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