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Gaussian Beam
TEM00 envelope: Rayleigh range zR = π w0² / λ, spot w(z), curvature R(z), and confocal parameter b = 2 zR.
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TEM00 envelope: Rayleigh range zR = π w0² / λ, spot w(z), curvature R(z), and confocal parameter b = 2 zR.
For design, installation, or safety decisions, verify assumptions against the applicable code edition, equipment documentation, and site requirements.
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