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Cr YAG Q Switch Crystals

Cr4+: YAG is a crystal that is used for passive Q-switching in lasers, and it is also an new laser material. It is applied in the range of 900-1200 nm and 1350-1600. Cr4+:YAG is an excellent saturable absorption material for Nd and Yb doped lasers(especially for Yb: YAG laser, Nd: YAG laser or Nd:YVO4 lasers)

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Product Details


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1.high thermal conductivity

2. high damage threshold(>500MW/cm2

3.AR/HR Coating

4.radiation stability 


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For example, Yb:YAG laser used to

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   ●Optical refrigerator
   ●Laser radar
  


Other applications:

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laser therapeutic instrument


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YAG Laser cutting machine


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Laser Range Finder (LRF)

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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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Absorption coefficient from 1.0 cm-1 to 7 cm-1

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Cr4+ concentration increased by post-annealing process,high Q-switch 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 Equipments


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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@632nm

》More information about Polishing


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ZPCL1H3%D0QF71F_F5AW5GM.png       Customized coating service 

     S1,S2:AR/AR@1064nm ≦ 0.2%

     S1,AR@1064nm,HR@1340nm ≦ 0.2%

     S1,AR@1064nm

》More information about Coating


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PropertyValue
Chemical formulaCr4+:Y3Al5O12
Crystal structurecubic - la3d
Lattice parameters, Å12.01
Orientation[100] or [110] < ±0.5°
Mass density4.56 g/cm3
Mohs hardness8.5
Young's modulus335 GPa
Tensile strength2 GPa
Melting point1970°C
Thermal conductivity0.1213
Specific Heat/ (J·g-1·K-1)0.59


Thermal Expansion /(10-6/°C@25°C)

7.8 <111>
7.7 <110>
8.2 <100>
Thermal shock resistance parameter800 W/m
Extinction Ratio25dB
Poisson Ratio0.25
Refractive Index @1064 nm1.83
Charge compensating ionCa2+, Mg2+

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PropertyValue
Optical Density0.1 to 0.8
Fluorescence lifetime3.4μs
Concentrations0.5 mol % ~ 3 mol %
Emission wavelength1350 nm ~ 1600 nm
Absorption Coefficient1.0 cm-1 ~ 7 cm-1
Ground state absorption cross section4.3x10-18 cm2
Emission state absorption cross section8.2x10-19 cm2
Transmission10% to 90%
CoatingsAR≤ 0.2% @1064nm
Damage Threshold> 500 MW / cm2

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PropertyValue
Orientation Tolerence< 0.5°
Thickness/Diameter Tolerance±0.05 mm
Surface Flatness<λ/8@632 nm
Wavefront Distortion<λ/4@632 nm
Surface Quality10/5
Parallel10〞
Perpendicular
Clear Aperture>90%
Chamfer<0.1×45°
HR coating<= 0.2% (@ 1340nm)
Maximum dimensions2*2-15*15 mm×20mm

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Initial transmission @1064nmDimensions, mmCoatingsSurface FlatnessSurface Quality (scratch/dig)



T0=30%-97%

dia 5



AR≤0.2% @1064nm



<λ/8@632 nm



10/5

3x3
5x5

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 Q Switch Crystals for sale, it is one of the leading manufacturers and supplies of good cr yag q switch crystals, welcome to buy and wholesale products at good price from our factory.

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