Purpose-Built
A visual laser-optics bench for Gaussian propagation, ABCD trains, waist placement, cavity stability, diffraction, fiber coupling, and tolerance sweeps.
One-time iPhone and iPad app
Beamcairn
Gaussian beams and cavities
Core Features
- Drag-reorder ABCD optical train
- Beam-radius and curvature plot
- Cavity stability map
- Fiber-coupling tolerance sweep
- Lens and glass reference library
Private by Design
No account, subscription, ads, tracking, third-party analytics, or developer-operated backend. Core features work offline, and your work stays on device unless you deliberately share or export it.
Use It Responsibly
Paraxial design aid, not a substitute for full wavefront, coating, damage-threshold or laser-safety analysis.