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Lithium niobate (LiNbO3) single crystal

Lithium niobate (LiNbO3) single crystal

 

Major capability parameter
Growth method
Czochralski method
Crystal structure
M3
Unit cell constant
a=b=5.148Å     c=13.863 Å
Melt point(℃)
1250
Density(g/cm3)
4.64
Hardness
5(mohs)
Through scope
0.4-2.9um
Index of refraction
no=2.286 ne=2.203 (632.8nm)
Nonlinear coefficient
d33=34.45,d31=d15=5.95,d22=13.07 (pmv-1)
Denko coefficient
γ13=8.6,γ22=3.4,γ33=30.8,γ51=28.0,γ22=6.00(pmv-1)
Through scope
370~5000nm >68% (632.8nm)
Thermal expansion
a11=15.4×10-6/k,a33=7.5×10-6/k
Product specification
Size
<Ø3″
Surface quality
10/5
Size tolerances
Z: ±0.3mm
X、Y:±0.1mm
Plane degrees
v8 (632.8nm)
Rotating angles
小于0.5mm,45 º±5 º
coating film
R<0.2%(1064nm)
Precision
Z: 5′
X、Y:<10′
distorted
<N4(633nm)
Pack
100 clean bag,1000 exactly clean bag

 

Lithium niobate crystals (LiNbO3, LN) combine excellent properties of piezoelectric, electro-optical, nonlinear optics and pyroelectricity.
 
Crystal advantages:
1) High electro-optical and nonlinear optical coefficient
2) Wide light transmission window, 321nm-5000nm;
3) Large birefringence Δ(no-ne)=0.086@632.8nm;
4) Can growth Kg-grade bulk LiNbO3 crystal;
5) Good machinability and no deliquescence.

 

Applications:
Integrated Waveguide Photonics
Wave Guide Lasers
Polarizer for Optic Isolator
EO Waveguide Phase Modulators
EO Waveguide Amplitude Modulators
Quasi-phase Matching for SHG and OPO
 
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