Determination of the He-Ne and diode laser beam parameters by ISO method And compare it with the theoretical values

Abstract

In this study the parameters of the He-Ne laser beam with wavelength 632.8nm, and power 1 mW and commercial diode laser with wavelength 651.6nm, and power1mW were measured, by applying the method of the International Standard Organization (ISO) system, and compared with the values that stated for the used lasers. First, the wave length for He-Ne and diode laser was measured for assurance. The results obtained were used for calculation beam width, diffraction angle, propagation factor (K) and time limit diffraction factor (M2). The study proved that, applying the ISO method for determining of laser beam parameter gives a result that agreed to large extend with the theoretical calculation of the beam parameters.