Spectroscopy
Grating dispersion · Sellmeier index · Wavenumber and photon energy
m · λ = d · (sin θᵢ + sin θₘ)25% of input411 calculators across 10 photonics domains, from laser safety to free-space links. Follow a branch of the chip into a domain, or search the library below.
Power split:Upper 25%Middle 50%Lower 25%
P± = ½(1 ± sin Δφ), quadrature-biased MZI, 50/50 taps
Grating dispersion · Sellmeier index · Wavenumber and photon energy
m · λ = d · (sin θᵢ + sin θₘ)25% of inputw(z) = w₀ · √[1 + (z / z_R)²]50% of inputT = 1 / [1 + F · sin²(δ / 2)]25% of input411
Interactive calculators
10
Photonics domains
Full library
Every domain is one click away; the chip above links into three of them.
Hazards & limits
NOHD, MPE, OD calculations and eye safety tools.
Estimate hazard distances, exposure limits, optical density, and classification thresholds for safety-critical laser scenarios.
Guided light
Attenuation, coupling, dispersion, nonlinear thresholds.
Explore how guided modes, attenuation, dispersion, coupling, and nonlinear effects shape fiber systems.
Interference stacks
AR coatings, dichroics, reflectors, stress and deposition.
Design multilayer stacks, anti-reflection coatings, filters, and angle-sensitive interference behavior.
Focus & sensing
Resolution, DOF, microscopy, OCT, focal geometry.
From PSF and depth of field to wavefront sensing and OCT coherence, model how optics form images.
Wavelength & signal
Resolution, FTIR, Raman, line broadening, calibration.
Resolve spectra, calibrate dispersive systems, estimate line broadening, and reason about signal-to-noise.
Light to signal
Responsivity, NEP, dark noise, avalanche gain, SPADs.
Understand how photons become current, noise, gain, and readout limits across detector families.
Indices & media
Sellmeier, dispersion, absorption, thermal and nonlinear properties.
Compare optical materials, refractive index models, absorption bands, and thermal or nonlinear behavior.
Interference & propagation
Gaussian beams, cavities, diffraction, combs, nonlinear propagation.
Follow phase, coherence, cavity stability, diffraction, and ultrafast propagation through wave-optics tools.
Vector states
Jones, Stokes, retarders, birefringence and PMD.
Model polarization state evolution, retarders, Mueller/Jones formalisms, and birefringent systems.
Links through air
Pointing loss, BER, scintillation, weather attenuation.
Estimate atmospheric penalties, pointing sensitivity, channel capacity, and link margins for optical links.