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    • Home
    • ICS
    • Electronics
    • Optoelectronics. Laser Equipment
    • ISO 11146-2:2021

    Codes & Standards - Purchase

    ISO 11146-2:2021

    Lasers and laser-related equipment — Test methods for laser beam widths, divergence angles and beam propagation ratios — Part 2: General astigmatic beams
    SKU: iso_077770_176196 Published by ISO Publication Year 2021 2 Edition 16 pages

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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.

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