BS EN ISO 12005:2022 PDF Download

BS EN ISO 12005:2022 is a standard that provides test methods for laser beam parameters, specifically focusing on polarization. The standard outlines a relatively quick and simple method for determining the polarization status and degree of polarization of a continuous wave (cw) laser beam. It can also be employed for repetitively pulsed lasers, as long as the orientation of the electric field vector remains constant between pulses.

Additionally, the standard specifies a method for determining the direction of the electric-field vector oscillation in the case of linearly polarized laser beams, whether partially or completely polarized. It assumes that the laser radiation is quasimonochromatic and sufficiently stable for accurate measurement. The standard is applicable to radiation that exhibits uniform polarization across its cross-sectional area.

The knowledge of the polarization status provided by BS EN ISO 12005:2022 is particularly important for certain applications involving lasers with high divergence angles. For example, when coupling the beam of such a laser with polarization-dependent devices like polarization maintaining fibers. The standard is not limited to narrow and almost collimated laser beams but also covers highly divergent beams and those with large apertures.