Interactive
Photonics Engineering Tools
Visualize the math behind the light. A suite of free simulators for optical fiber design, laser physics, and spectral analysis.
Photonics
Interactive
Electromagnetic Wave Simulator
Visualize the full electromagnetic spectrum in real time. Drag the slider to explore the
inverse relationship between wavelength, frequency, and photon energy, from radio waves to
gamma radiation.
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Laser Optics
Interactive
Gaussian Beam Focusing Simulator
Simulate how a Gaussian laser beam focuses through a lens. Adjust beam diameter and focal
length to calculate spot size, divergence angle, and Rayleigh range across 5 optical
element types.
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Optics
Interactive
Snell's Law Simulator
Visualize light refraction in real time. Drag the incident ray to explore how light bends
between two media such as air, water, glass and diamond and discover total internal
reflection.
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Laser Optics
Interactive
Laser Beam Divergence Simulator
Visualize Gaussian beam propagation in real time. Adjust beam waist, wavelength, and M² to
calculate divergence angle, Rayleigh range, and beam parameter product across near-field
and far-field zones.
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Fiber Optics
Interactive
Fiber Coupling Efficiency Simulator
Model laser diode to fiber coupling in real time. Adjust fast and slow axis divergence,
lens focal length, fiber NA and core diameter to calculate mode overlap, NA mismatch loss,
and total coupling efficiency.
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Laser Optics
Interactive
Laser Focusing & Spot Size Simulator
Calculate focused spot size, depth of focus, Rayleigh range, and peak intensity in real
time. Adjust focal length, beam diameter, M², and input power with material damage
threshold detection.
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Laser Electronics
Interactive
Laser Pulse & Modulation Simulator
Adjust pulse width, repetition rate and optical power to calculate pulse energy, peak
power, average power and duty cycle. Compare digital gating with sine, square or triangle
analog modulation.
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Optics
Interactive
Polarization & Waveplate Simulator
Rotate polarizers and waveplates to explore linear, circular and elliptical polarization.
Visualize electric-field motion, Malus’s law and optical transmission in real time.
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