Laser Physics & Optical Cavities
Fabry-Pérot Interferometer
Simulate Charles Fabry and Alfred Pérot's high-resolution optical cavity. Multiple internal reflections between parallel dielectric mirrors create ultra-sharp Airy function transmission peaks $T = 1 / [1 + F \sin^2(\delta/2)]$.
Cavity Finesse F
31.2
Transmission T
98.4 %
Free Spectral Range
15.0 GHz
Optical Cavity Setup
Visual Overlay
Controls
Airy Distribution & Finesse Equations
Coefficient of Finesse: F = 4R / (1 - R)²
Cavity Finesse: ℱ = π √R / (1 - R)
Airy Transmission: T(δ) = 1 / [1 + F · sin²(δ / 2)] where δ = 4π d / λ
Cavity Finesse: ℱ = π √R / (1 - R)
Airy Transmission: T(δ) = 1 / [1 + F · sin²(δ / 2)] where δ = 4π d / λ
Developer Reference
Core Algorithm & Standalone Script
// Fabry-Perot Airy distribution optical solver
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
// T = 1 / (1 + F * sin(delta / 2)^2)