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Nd Yag Laser Crystal Rod For Laser Welding Solid State Laser Machine
Nd: YAG (Neodymium-doped Yttrium Aluminum Garnet） is a crystal that is used as a lasing medium for solid-state lasers. The dopant, triply ionized neodymium, Nd(III), typically replaces a small fraction of the yttrium ions in the host crystal structure of the yttrium aluminum garnet (YAG), since the two ions are of similar size. It is the neodymium ion which that proves the lasing activity in the crystal, in the same fashion as the red chromium ion in ruby lasers. Generally， the crystalline YAG host is doped with around 1% neodymium by atomic percent.
Advantage Wide absorption bandwidth Low lasing threshold High slope efficiency Large luminescence cross-section Linearly polarized emission and single-mode output
