BS EN ISO 11146-2:2005
Lasers and laser-related equipment - Test methods for laser beam widths, divergence angles and beam propagation ratios - General astigmatic beams

Standard No.

BS EN ISO 11146-2:2005

Release Date

2005

Published By

British Standards Institution (BSI)

Status

Be replaced 2021-10

Replace By

BS EN ISO 11146-2:2021

Latest

BS EN ISO 11146-2:2021

Replace

01/714514 DC:2001 BS EN ISO 11146:2000

Scope

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.

BS EN ISO 11146-2:2005 history

• 2021 BS EN ISO 11146-2:2021 Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios. General astigmatic beams
• 2005 BS EN ISO 11146-2:2005 Lasers and laser-related equipment - Test methods for laser beam widths, divergence angles and beam propagation ratios - General astigmatic beams