LGS

LGS
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Product Details

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1.High thermal stability

2.High electromechanical coupling coefficient (3 times of quartz)

3.Low equivalent series resistance


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Electro-optic Q-switch used in

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   ●1.3414μm Nd:YAlOpulse laser
   ●Repetitive rate electro-optical Q switching Nd:YAG laser

  


Other applications:

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pressure sensor


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acceleration sensor


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SAW device


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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 1.37cm-1 @ 881.6nm

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La3+concentration increased by post-annealing process,high Laser gain effect

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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 bound

》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@632nm                                                  

》More information about Crystal Growth



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Crystal structureTrigeminal system
Point cloud32
Space groupP321
Lattice constant、Åa=b=8.165, c=5.088
Melting point, ℃1475
density, g/cm35.75
Mohs hardness, Mohs6.5


Dielectric constant

ε110=18.27
ε330=56.26


Piezoelectric strain constant, C/N

d11=6.3×10-12
d14=-5.4×10-12
Phase velocity, m/s2750~2850
Electromechanical coupling coefficient, Ks20.28~0.46 %
SolubilityNone

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Constant

Relative

Piezoelectric   Constant
(pC/N)

Elastic   Stiffness(1011 Pa)
Dielectric Constant
ε11ε33d11d14c11c12c13c14C33C44
Value18.9650.195.66-5.481.8981.0581.0220.1442.6260.535
First Order Temp. Coef(10-6·K-1150-760329-342-66204-75-335-94-63


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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



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