How do I simulate a soap-bubble film?

Open this page and use the live Fiber Optics tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a soap-bubble film from your own measurements.

Use case · powered by Fiber Optics

Fiber Optics for a soap-bubble film

Simulate a soap-bubble film live in your browser. This runs the real Fiber Optics solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

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Fiber OpticsLive

total internal reflection

Controls

Presets

Core index n₁

Cladding index n₂

Core diameter (µm)

An optical fiber traps light in a high-index core surrounded by lower-index cladding: rays hitting the boundary above the critical angle undergo total internal reflection and bounce down the fiber for kilometers. The numerical aperture sets the acceptance cone, and the core size decides whether it carries one mode (single-mode, for long-haul) or many (multimode).

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Data Inspector

Critical angle80.6°

Numerical aperture0.242

Acceptance angle14.0°

Fiber typemultimode (~423)

Governing equation

N A = n_{1}^{2} - n_{2}^{2} = 1.48 0^{2} - 1.46 0^{2} = 0.242

Reading this result: Rays steeper than the 80.6° critical angle reflect and stay trapped; here V = 29.1 allows ~423 modes, so this behaves as multimode fiber — cheap and easy to launch, but modal dispersion caps the bandwidth.

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About this simulation

The full Fiber Optics tool models a soap-bubble film with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

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Other ways to simulate a soap-bubble film

Snell's Law for a soap-bubble film Diffraction Grating for a soap-bubble film Curved Mirrors for a soap-bubble film Prism Dispersion for a soap-bubble film Laser Cavity for a soap-bubble film Gaussian Beam for a soap-bubble film

Frequently asked questions

How do I simulate a soap-bubble film?: Open this page and use the live Fiber Optics tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a soap-bubble film from your own measurements.