![]() ![]() ![]() dermatology, dentistry) rely on the erbium ion's 2940 nm emission (see Er:YAG laser) when lit at another wavelength, which is highly absorbed in water in tissues, making its effect very superficial. In addition to optical fiber amplifier-lasers, a large variety of medical applications (i.e. The 1550 nm wavelength is especially important for optical communications because standard single mode optical fibers have minimal loss at this particular wavelength. This process results in an unusually mechanically simple laser optical amplifier for signals transmitted by fiber optics. Erbium-doped glasses or crystals can be used as optical amplification media, where Er 3+ ions are optically pumped at around 980 or 1480 nm and then radiate light at 1530 nm in stimulated emission. It is a lanthanide, a rare-earth element, originally found in the gadolinite mine in Ytterby, Sweden, which is the source of the element's name.Įrbium's principal uses involve its pink-colored Er 3+ ions, which have optical fluorescent properties particularly useful in certain laser applications. A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. Erbium is a chemical element with the symbol Er and atomic number 68. ![]()
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