50% Er:YAG Crystals and Components for 2940nm Laser

Er:YAG laser Crystal—50% Erbium doped in YAG which can stimulate 2940nm laser used in medical and dentistry Erbium doped Yttrium Aluminum Garnet (Er:Y3Al5O12 or Er:YAG) combine various output wavelength with the superior thermal and optical properties of YAG. It is an excellent laser crystal which lasers at 2.94µm. This wavelength is the most readily absorbed into water and hydroxylapatite of all existing wavelengths and is considered a highly surface cutting laser. It is a well known material for medical applica- tions.

The emission wavelength of Er:YAG with doping concentration of 50% is 2940nm, which is at the position of water absorption peak and can be strongly absorbed by water molecules. Therefore, it is widely used in the field of plastic surgery and dentistry. At present, the projects we have participated in include laser blood collection instrument, which adopts the structure of both sides of Er:YAG rods coated and xenon lamp end pumped. the Er-YAG laser wavelength is an excellent choice for improvement of a variety of skin conditions and features of aging, including dyschromia, actinic photodamage, solar elastosis, acne and traumatic scarring, fine lines and mild to moderate rhytidosis, coarse skin texture, and skin laxity.

The output of Er:YAG enables the painless monitoring of blood sugar levels, while safely reducing the risk for infection. It is also effective for laser treatment of soft tissue, such as cosmetic resurfacing. It is equally useful for treating hard tissue such as tooth enamel.

Er:YAG enjoys an advantage over other laser crystals in the 2.94 micron range in that it employs YAG as the host crystal. The physical, thermal and optical properties of YAG are widely known and well understood. Laser designers and operators can apply their depth of experience with Nd:YAG laser systems to achieve superior performance from 2.94 micron laser systems using Er:YAG crystals.

Er:YAG Crystals was designed for 2.94 µm output wavelength Er:YAG is an excellent choice for Medical Laser Systems and Dental Laser Systems.

Ulticrystal's Er:YAG crystal is featured by：

      •　Large electro-optic coefficient
      •　Not easy to deliquesce
      •　High sensitive
      •　Wide transparency range
      •　High optical damage threshold
      •　Stable chemical and physical properties

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