NF EN ISO 11146-2

NF EN ISO 11146-2

August 2005
Standard Cancelled

Lasers and laser-related equipment - Test methods for laser beam widths, divergence angle and beam propagation ratios - Part 2 : general astigmatic beams

ISO 11146-2:2005 specifies methods for measuring beam widths (diameter), divergence angles and beam propagation ratios of laser beams. ISO 11146-2:2005 is applicable to general astigmatic beams or unknown types of beams. For stigmatic and simple astigmatic beams, ISO 11146-1 is applicable. Within ISO 11146-2:2005, 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.

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Main informations

Collections

National standards and national normative documents

Publication date

August 2005

Number of pages

23 p.

Reference

NF EN ISO 11146-2

ICS Codes

31.260   Optoelectronics. Laser equipment

Classification index

S10-120-2

Print number

1 - 22/07/2005

International kinship

ISO 11146-2:2005

European kinship

EN ISO 11146-2:2005
Sumary
Lasers and laser-related equipment - Test methods for laser beam widths, divergence angle and beam propagation ratios - Part 2 : general astigmatic beams

ISO 11146-2:2005 specifies methods for measuring beam widths (diameter), divergence angles and beam propagation ratios of laser beams. ISO 11146-2:2005 is applicable to general astigmatic beams or unknown types of beams. For stigmatic and simple astigmatic beams, ISO 11146-1 is applicable.

Within ISO 11146-2:2005, 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.

Standard replaced by (1)
NF EN ISO 11146-2
July 2021
Standard Current
Lasers and laser-related equipment - Test methods for laser beam widths, divergence angles and beam propagation ratios - Part 2 : general astigmatic beams

<p>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.</p> <p>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.</p>

Table of contents
View the extract
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    1
  • 4 Système de coordonnées
    5
  • 5 Principes d'essai
    5
  • 5.1 Généralités
    5
  • 5.2 Moments spatiaux de second ordre de la distribution de Wigner
    5
  • 5.3 Moments de second ordre de la distribution de Wigner
    5
  • 5.4 Grandeurs dérivées
    6
  • 6 Disposition de mesurage et équipement d'essai
    6
  • 6.1 Généralités
    6
  • 6.2 Préparation
    6
  • 6.3 Contrôle de l'environnement
    6
  • 6.4 Système de détection
    6
  • 6.5 Optique de formation du faisceau et atténuateurs optiques
    7
  • 7 Mesurage des moments de second ordre
    7
  • 7.1 Généralités
    7
  • 7.2 Mesurage des moments de second ordre des distributions de densité de puissance
    8
  • 7.3 Mesurage de tous les moments de second ordre de la distribution de Wigner
    9
  • 8 Détermination du facteur de limite de diffraction effectif
    12
  • 9 Détermination de l'astigmatisme intrinsèque
    12
  • 10 Détermination du paramètre de torsion
    12
  • 11 Rapport d'essai
    12
  • Bibliographie
    15
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