BSI 20/30390868 DC 2020

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BS ENISO 11146-2. Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios – Part 2. General astigmatic beams

Published By	Publication Date	Number of Pages
BSI	2020	23

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Description

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.

Additional information

Status	Definitive
Pages	23
Publication Date	2020-05-01
Standard Number	20/30390868 DC
Title	BS ENISO 11146-2. Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios – Part 2. General astigmatic beams
Identical National Standard Of	ISO/DIS 11146-2
Descriptors	Optics, Width, Optical instruments, Test methods, Propagation, Optical measurement, Ratios, Beams, Lasers
Publisher	BSI
Committee	CPW/172
ICS Codes	31.260 - Optoelectronics. Laser equipment

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BSI 20/30390868 DC 2020

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