poppy
The premium Open Source alternative to Zemax OpticStudio
🎯 Best for:Engineers designing diffraction-limited optical systems like JWST.
What is poppy?
Simulates Fraunhofer and Fresnel diffraction for optical system modeling and PSF generation. Utilizes Python's scientific stack to model complex apertures and phase aberrations in telescopes.
Tech Stack
Jupyter NotebookPhysics & Astronomy
Why poppy?
- • High-fidelity PSF simulation
- • GPU acceleration support
- • Flexible aperture definitions
Limitations
- • Lacks GUI for design
- • Limited ray-tracing features
- • Manual coordinate system management
2/5/2026
Last Update
81
Forks
34
Issues
BSD-3-Clause
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to poppy instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on Zemax OpticStudio)
Self-Hosted
$0
/ year
Team Size10 Users
150+
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