| Place of Origin: | China |
|---|---|
| Brand Name: | CRYLINK |
| Certification: | Iso9001 |
| Model Number: | CRYLINK-Er YAG Laser Crystal |
| Minimum Order Quantity: | 1 Pieces |
| Price: | negotiation |
| Packaging Details: | Carton |
| Delivery Time: | 3-4 weeks |
| Payment Terms: | TT |
| Supply Ability: | 100 pieces /month |
| Chemical Formula: | Er3+:Y3Al5O12 | Crystal Structure: | Cubic - La3d |
|---|---|---|---|
| Lattice Parameters: | 12.01 | Density: | 4.56-5.11 G/cm3 |
| Melting Point: | 1950°C | Refractive Index: | 1.7838@2940nm |
| High Light: | Er yag crystal,Er yag laser crystal,Erbium doped Yag |
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Erbium-doped Yttrium Aluminum Garnet (Er:YAG) is a pale green crystal with various output wavelength. Typically, highly doped Er:YAG, about 50% Yttrium atoms replaced by Erbium, is used as laser medium for 2940 nm wavelength. Due to the strong water and human body fluid absorption at this wavelength, Er:YAG laser has a wide dental and medical applications.
For example, low doped Er:YAG, about (0.1~1)% Yttrium atoms replaced, plays an efficient role in generating high power 1600 nm 'eye-safe' laser. The excellent optical and mechanical properties and a wide pump band of 600~800 nm make Er:YAG an ideal laser crystal.
Absorption Spectrum of 50% Er3+:YAG crystal
| Features
Works in a relatively eye-safe wavelength region Strongly absorbed by water, hydroxyapatite and human body fluid Wide pump band from 600~800 nm Works well under room temperature High slope efficiency Good optical quality |
Applications Medical laser systems including skin disorder therapy, hard tissue removal, blood sugar monitoring, orthopedics Dental laser systems including tooth enamel, cosmetic surgery |
Chemical and physical properties
|
Property |
Value |
|
Chemical formula |
Er3+:Y3Al5O12 |
|
Crystal structure |
cubic - la3d |
|
Lattice parameters |
12.01 |
|
Density |
4.56-5.11 g/cm3 |
|
Melting Point |
1950°C |
|
Refractive Index |
1.7838@2940nm |
|
Thermal Conductivity /(Wcm-1K-1 @25°C) |
0.14 |
|
Specific Heat/ (Jg-1K-1) |
0.59 |
|
Thermal Expansion /(10-6 /°C @25°C) |
7.8 |
|
Hardness (Mohs) |
8.5 |
|
Young`s Modulus /GPa |
317 |
|
Shear Modulus / GPa |
54.66 |
|
Extinction Ratio / dB |
30 |
|
Orientation |
[100] or [111] < ±0.5° |
|
Poisson Ratio |
0.25 |
Laser properties
|
Property |
Value |
|
Concentrations |
50 at.% (highly doped); 0.1~1 at.% (low doped) |
|
Laser transition |
4I11/2 4I13/2 (highly doped) |
|
Emission wavelength |
2940 nm (highly doped) |
|
Pump wavelength |
600~800 nm (highly doped) |
|
Fluorescence lifetime |
0.23 ms (highly doped) |
|
laser transition peak cross section, l (E-20 cm2) |
3 |
|
Coatings |
< 0.25% @ 2940 nm |
Polishing Specification
| Property |
Value |
|
Orientation Tolerance |
< 0.5° |
|
Thickness/Diameter Tolerance |
±0.05 mm |
|
Surface Flatness |
</8 @632 nm |
|
Wavefront Distortion |
</4 @632 nm |
|
Surface Quality |
10/5 |
|
Parallel |
10 |
|
Perpendicular |
5 |
|
Clear Aperture |
>90% |
|
Chamfer |
<0.1×45° |
