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Contact SupplierEr: YAG crysta laser  is a kind of excellent 2.94 um laser crystal, widely used in laser medical system and other fields. Er: YAG crystal laser is the most important material of 3nm laser, and the slope with high efficiency, can work at room temperature laser, laser wavelength is within the scope of the human eye safety band, etc. 2.94 mm Er: YAG crysta laser has been widely used in medical field surgery, skin beauty, dental treatment. Coupletech porivde the advantages of Er:YAG crystals: High slope efficiency; Operate well at room temperature; Operate in a relatively eye-safe wavelength range.  The parameter of Er:YAG as below: wavelength is 2940nm; melting point is 1965°C; orientation is within 5 degree; density is 4.56 g cm-3; parallelism is ≤ 10"; perpendicularity is ≤ 5′; flatness is lambda10 at 632.8nm; suface quality is 105.  For the Er:YAG, you can customise this product to your needs. If you do not find suitable specification for your application please contact us for custom solution. Coupletech also provide other laser crystals and the best service.