Abstract
The end-pumping scheme in diode-pumped solid-state lasers has promised the achivement of high opticalconversion efficiency. However, in the case of using high-power diode bars as a pumping sourse, it is difficultto focuse the small-diamater beams required for an end-pumping laser due to the poor beam quality of thediode bar. This paper reviews beam-shaping techniques to improve the quality of the diode-bar and to achievea suitably focused spot size for end pumping.
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