Neodymium is a chemical element that belongs to
rare earthsand has the atomic number 60 in the periodic table.Neodymium is used in various technical processes and devices. For example in diode lasers, fiber lasers, fiber amplifiers and optical amplifiers. It is also a component of the C0G dielectric and is used in the permanent magnets of loudspeakers because of its unique magnetic properties. Neodymium tweeters
are well known, and neodymium is used in combination with silicate and phosphate glasses in components for optical data transmission and lightwave generation. The emission wavelengths are between 0.9 µm and 1.35 µm.