عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In this paper، We present results of investigation for systematic power scaling of Nd:YAG laser systems by preserving the beam quality and misalignment sensitivity. Firstly using distributed refractive power model and the GLAD software, a single rod dynamically stabilized resonator was proposed and considered as a base resonator scheme. The proposed resonator, in compare with its flat symmetric counterpart, had higher fundamental mode volume (at least twelve times) and exhibited the same amount of misalignment sensitivity. Then due to the limitation of increasing the pumping power in the process of power scaling, we used periodic multi-rod resonators, based on a basic dynamic stable resonator. Effectiveness of periodic resonators in fundamental mode power scaling, due to increasing of the fundamental mode volume, have been investigated. The results of the investigation has been validated via a two rod periodic laser resonator. In our opinion, the results of this investigation is useful for power scaling of single transverse mode Nd:YAG lasers, without degrading the beam quality and generating more misalignment sensitivity.