Er YAG

Er YAG
Product Details

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1.Works in a relatively eye-safe wavelength region

2.High slope efficiency

3.Good optical quality


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1.54  micron eye-safe wavelength laser used in Ophthalmic laser therapy apparatus

image.png  ●Penetrating keratoplasty

   ●Glaucoma surgery
   ●Vitreoretinal surgery
   ●Cataract surgery


Other applications:

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Dental laser therapy apparatus


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Er YAG Laser therapeutic apparatus


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Skin laser therapy apparatus

》More information about Er YAG Laser: Wikipedia


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Low bulk absorption

High Purity raw materials >99.999%

Low bulk absorption

Advanced raw material pre-sintering process

Advanced raw material pre-sintering process

No poly-crystalline defects


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① Full automatic controlled crystal growth furnace High yield

② Advanced CZ Method Crystalline Process Stable quality control

③ Systematic batch packing classification

》More information about Equipments


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Maximum boule size >dia50mm

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Anealing Improve the laser efficiency

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High doping concentration gradient homogeneity , typical value<0.02cm-1/inch

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No bubbles, scatering point and inclusions in crystals


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No grain boundary in crystals



》More information about Crystal Growth


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High level dust-free clean room 

(1000) grade)


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2-sides polishing equipments


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AFM


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Interferometer

Advance CMP process, Ra<0.4nm          

Surface quality: >10/5           

Flatness: <λ/8@632 nm

》More information about Polishing


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ZPCL1H3%D0QF71F_F5AW5GM.png       Customized coating service 

     S1,S2:AR/AR@2940nm<0.25%

     S1,AR@2940nm,HR@2940nm

     S1,AR@2940nm

》More information about Coating


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PropertyValue
Chemical formulaEr3+:Y3Al5O12
Crystal structurecubic - la3d
Lattice parameters12.01Å
Density4.56-5.11 g/cm3
Melting Point1950°C
Refractive Index1.7838@2940 nm
Thermal Conductivity/(W·cm-1·K-1@25°C)0.14W
Thermal Expansion /(10-6 /°C@25°C )7.8
Specific Heat/ (J·g-1·K-1)0.59
Hardness (Mohs)8.5
Young`s Modulus /GPa317
Shear Modulus / GPa54.66
Extinction Ratio / dB30
Orientation[100] or [111] < ±0.5°
Poisson Ratio0.25

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PropertyValue
Concentrations50 at.% (highly doped);
(0.1~1) at.% (low doped)
Laser transition4I11/2 → 4I13/2 (highly doped)
4I13/2 → 4I15/2 (low doped
Emission wavelength2940 nm (highly doped)
1645 nm (low doped)
Pump wavelength600~800 nm (highly doped)
1530 nm (low doped)
Fluorescence lifetime0.23 ms (highly doped)
2~5 ms (low doped)
laser transition peak cross section, l (E-20 cm2)3
Coatings< 0.25% @ 2940 nm

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PropertyValue
Orientation< 0.5°
Thickness/Diameter±0.05 mm
Surface Flatness<λ/8@632 nm
Wavefront Distortion<λ/4@632 nm
Surface Quality10/5
Parallel10〞
Perpendicular
Clear Aperture>90%

send inquiry.png If you want to get more information send us you message


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History: 

Metalaser has engaged in crystal industry over 20 years which is one section    of Shanghai Daheng Optics and Fine Mechanics Co., Ltd held by SIOM. 

Team:     

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More than 60% of our employees are physics or material scientists from NIALT and SIOM.





》More information about our company

Alibaba Transaction History:

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We have set up a mall on the Alibaba, and there are many transaction record from all over the world.    

》Our Alibaba trade website

           

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Delivery in 3~4weeks

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Free samples can be provided

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Free ex change goods or sales return for once 

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Provides re-polished and coating

services (Coating damage only)

Note:Postage paid by the buyer

》More information about Service


With Laser Crystals for sale, it is one of the leading manufacturers and supplies of good er yag, welcome to buy and wholesale products at good price from our factory.
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