SS-EN-ISO-11146-2 › Lasers and laser-related equipment - Test methods for laser beam widths, divergence angles and beam propagation ratios - Part 2: General astigmatic beams (ISO 11146-2:2021)
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This document specifies methods for measuring beam widths (diameter), divergence angles and beam propagation ratios of laser beams. This document is applicable to general astigmatic beams or unknown types of beams. For stigmatic and simple astigmatic beams, ISO 11146-1 is applicable. Within this document, the description of laser beams is accomplished by means of the second order moments of the Wigner distribution rather than physical quantities such as beam widths and divergence angles. However, these physical quantities are closely related to the second order moments of the Wigner distribution. In ISO/TR 11146-3, formulae are given to calculate all relevant physical quantities from the measured second order moments.
To find similar documents by classification:
31.260 (Optoelectronics. Laser equipment Including photoelectric tubes and cells)
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Designation Name
SS-EN ISO 11146-2:2021
Revision Level
2021 EDITION
Status
Current
Publication Date
Aug. 5, 2021
Language(s)
English
Page Count
28
International Equivalent
EN ISO 11146-2:2021(IDT); ISO 11146-2:2021(IDT)