The first operation of yttrium aluminum garnet doped with tri-valent Neodymium as a laser gain media was demonstrated at Bell Labs in 1964 [1]. Today, Nd:YAG has achieved a position of dominance among solid-state laser materials, being the most widely used lasing medium world-wide, with applications spanning medical, industrial, military and scientific markets. Nd:YAG lasers typically emit infrared light at 1064nm - however other transitions near 940, 1120, 1320, and 1440 nm are also used [2].
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