Gaussian Beam Calculator
Analyze Gaussian beam propagation parameters including beam waist, Rayleigh range, far-field divergence, beam diameter at any distance, and confocal parameter (depth of focus).
Inputs
Radius at the beam waist (1/e² intensity)
1.0 for ideal Gaussian, >1 for real beams
Results
Rayleigh Range
49.63 mm
Divergence
2.01 mrad
Beam Radius at z
224.9 μm
Gaussian Beam Results
| Parameter | Value |
|---|---|
| Beam Waist w₀ | 100 μm (200.0 μm diameter) |
| Rayleigh Range z_R | 49.6302 mm |
| Divergence (half-angle) | 2.0149 mrad (0.115445°) |
| Full Divergence Angle | 4.0298 mrad |
| Beam Radius at z = 100 mm | 224.94 μm |
| Beam Diameter at z = 100 mm | 449.88 μm |
| Depth of Focus (confocal) | 99.2604 mm |
| M² Factor | 1 |
| Wavelength | 633 nm |
Frequently Asked Questions
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