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ISO/TR 11146-3:2004

Lasers and laser-related equipment - Test methods for laser beam widths, divergence angles and beam propagation ratios - Part 3: Intrinsic and geometrical laser beam classification, propagation and details of test methods
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ISO/TR 11146-3:2004

Lasers and laser-related equipment - Test methods for laser beam widths, divergence angles and beam propagation ratios - Part 3: Intrinsic and geometrical laser beam classification, propagation and details of test methods

PUBLISH DATE 2026
ISO/TR 11146-3:2004

ISO/TR 11146-3:2004 specifies methods for measuring beam widths (diameter), divergence angles and beam propagation ratios of laser beams in support of ISO 11146-1. It provides the theoretical description of laser beam characterization based on the second-order moments of the Wigner distribution, including geometrical and intrinsic beam characterization, and offers important details for proper background subtraction methods recommendable for matrix detectors such as CCD cameras. It also presents alternative methods for the characterization of stigmatic or simple astigmatic beams that are applicable where matrix detectors are unavailable or deliver unsatisfying results.

SDO ISO: International Organization for Standardization
Document Number ISO/TR 11146
Publication Date April 1, 2026
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 172/SC 9
Publish Date Document Id Type View
April 1, 2026 ISO/TR 11146-3:2004 Revision
April 1, 2026 Revision