EPIPPROP
Epipprop is a unique and innovative tool for the modelling and optimisation of AWGs (arrayed waveguide gratings) and echelle gratings and planar concave gratings in particular for wavelength division multiplexing applications (WDM/DWDM).
Features
- 3D fully vectorial modelling of echelle gratings and AWGs with EpippropSelection of tunable grating templates
- Ultra fast propagation in the free-space region using analytic diffraction theory
- Built-in waveguide mode solver: fully vectorial 2D+z finite difference solver (same as FIMMWAVE’s FDM Solver)
- I/O waveguide arrays support multi-mode waveguides and arbitrary polarisation
- Accounts for all diffraction orders
- Model surface roughness variations in the thickness of the slab waveguide structure in the star couplers
- Simulate multiple vertical slab modes and the coupling between themUse our built-in material database or define your own to capture the effect of material dispersion
- Simulate tapering and cross-coupling between adjacent waveguides (FIMMPROP required)
- Optimise deep etch to shallow etch tapered transitions and reduce losses
- Simulate channel broadening with Multimode Interferometer input and output with multi-section tapers (FIMMPROP required)
- Export any design layout to a multilayer GDS-II file: from CAD to Fab in one click.
Applications
- Wavelength de-multiplexing (WDM/DWDM)
- Arrayed waveguides (AWGs)
- Echelle gratings
- Planar Concave gratings
- Rowland Circle gratings
Examples
- Perfect chirped grating
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Rowland Circle Grating Design
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Stigmatic grating
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Perfect Chirped grating
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Corner Facet Rounding
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I/O crosstalk
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Channel broadening
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Multi-etch tapers
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Fixed bend radius AWG design
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Single bend per path AWG design
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Top Hat AWG design
- S-Bend AWG design
Optional Modules for EPIPPROP
AWG Module
This module provides a design template and simulation tools for creating and optimizing arrayed waveguide grating (AWG) designs.
Echelle Module
The Echelle module offers three grating design templates—Rowland Circle, Stigmatic, and the unique Perfect Chirped Grating—along with simulation capabilities to develop and refine these designs.
Connected Products
FIMMPROP
FIMMPROP integrates seamlessly with EPIPPROP enabling the modeling of tapering waveguide effects, including neighbor coupling and channel broadening when using MMI waveguides in AWGs and Echelle gratings.