How do I simulate a fiber sensor?

Open this page and use the live Bragg Mirror 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 fiber sensor from your own measurements.

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Bragg Mirror for a fiber sensor

Simulate a fiber sensor live in your browser. This runs the real Bragg Mirror solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Bragg Mirror (DBR)Live

a mirror from interference

Controls

Presets

Layer pairs

High index n_H

Low index n_L

A distributed Bragg reflector stacks alternating quarter-wave layers of high and low index. Their reflections add up in phase over a band of wavelengths — the stopband — creating a mirror that can exceed 99.99% reflectivity, far better than metal. More layer pairs and higher index contrast deepen the reflectivity. Used in lasers, fiber gratings, and dielectric mirrors.

▶ Run in Python

Data Inspector

Peak reflectivity99.627%

Layer pairs8

Index contrast1.59

Stopband width160 nm

Governing equation

R = (\frac{n _{0} n _{H}^{2 N} - n _{s} n _{L}^{2 N}}{n _{0} n _{H}^{2 N} + n _{s} n _{L}^{2 N}})^{2} = (\frac{2. 3 ^{16} - 1.5 \cdot 1.4 5 ^{16}}{2. 3 ^{16} + 1.5 \cdot 1.4 5 ^{16}})^{2} = 99.627%

Reading this result: Each added pair multiplies the residual transmission, so reflectivity approaches 100% geometrically — a little more contrast buys many fewer layers.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Bragg Mirror tool models a fiber sensor 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.

More you can do with Bragg Mirror

Bragg Mirror for a camera lens Bragg Mirror for a laser beam Bragg Mirror for a fiber-optic cable Bragg Mirror for a microscope Bragg Mirror for a telescope Bragg Mirror for a prism Bragg Mirror for a rainbow Bragg Mirror for a hologram

Other ways to simulate a fiber sensor

Snell's Law for a fiber sensor Diffraction Grating for a fiber sensor Curved Mirrors for a fiber sensor Prism Dispersion for a fiber sensor Laser Cavity for a fiber sensor Fiber Optics for a fiber sensor

Frequently asked questions

How do I simulate a fiber sensor?: Open this page and use the live Bragg Mirror 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 fiber sensor from your own measurements.