The Study Impact of Some Atmospheric Factors on the Transmission Laser Nd: YAG in the Atmosphere

Abstract

In this research is to study some atmospheric factors (temperature, humidity using two types of water are distilled water and the water of the Tigris River) and its impact on the transmission of the laser. using system consists of laser Nd: YAG two wavelength 1064 nm and energy 88.3 mj and 532 nm the energy 40 mj and also includes the system used to study a number of devices from the most important cell attenuation that was designed in this study, and knowledge of the impact of these effects on the lasers after to cut the distance inside the cell attenuation of 2 m. Reached from this study that the effect of temperature change on all the tow wavelength used in the experiments lead to increased transmittance with high temperatures for all wavelength It also concluded that the transmittance of these lasers are used less with the rise in the values ​​of relative humidity for all the wavelength used in the research because of the occurrence of spectrum of these laser within packages absorption of water vapor where we note the effect of humidity by river water to be more influential on the transmittance of the laser beams from moisture by distilled water attributed the reason for this difference to the fact that river water contains many dissolved substances.