LiNbO3 Lithium niobate

Brief Description
CAS No.: 12031-63-9 MF: LiNbO3 EINECS No.: 234-755-4
Place of Origin: Shanghai China (Mainland) Purity: 99.9 Classification: General Reagents
Brand Name: ATOM  
Specifications
LiNbO3 Lithium niobate

Lithium niobate is a ferroelectric material suitable for a variety of applications.

Lithium niobate is a ferroelectric material suitable for a variety of applications. Its versatility is made possible by the excellent electro-optic, nonlinear, and piezoelectric properties of the intrinsic material.
  • Lager Dimension
  • Broad spectral transmission ranges from 0.4 µm to 5.0 µm with an OH- absorption at 2.87 µm
  • No moisture

 

Basic Properties of LiNbO3:
Crystal Structure:
Trigonal, Space group R3C, Point group 3m
Cell Parameters:
a=5.148Å , c=13.863Å
Melting Point:
1253° C
Curie Temperature:
1140° C
Mohs Hardness:
5
Density:
4.64 g/cm3
Deliquescence
None
Optical Homogeneity
~ 5x10-5/cm
Transparency Range
420nm-5200nm
Absorption Coefficient:
~0.1%/cm @ 1064nm
Refractive indices at 1064nm:
ne= 2.146, no = 2.220 @ 1300 nm
ne = 2.156, no = 2.232 @ 1064 nm
ne = 2.203, no = 2.286 @ 632.8 nm
Thermal Expansion Coef. (@ 25¡ãC)
//a, 2.0x10-6/K
//c, 16.7x10-6/K
Thermal Conductivity Coefficient:
38 W/m/K at 250C
Thermal Optical Coefficient:
dno/dT=-0.874x10-6/K at 1.4m m
dne/dT=39.073x10-6/K at 1.4m m
The Sellmeier equations
( l in m m)
no2 = 4.9048 + 0.11768/(l 2-0.04750)-0.027169l 2
ne2 = 4.5820 + 0.099169/(l 2-0.04443)-0.021950l 2
Nonlinear Optical Properties:
NLO Coefficientsd33 = 34.4 pm/V
d31 = d15 = 5.95 pm/V
d22 = 3.07 pm/V
Efficiency NLO coefficientsdeff =5.7 pm/V or ~14.6 x d36 (KDP) for frequency doubling 1300 nm;
deff =5.3 pm/V or ~13.6 x d36 (KDP) for OPO pumped at 1064 nm;
deff =17.6 pm/V or ~45 x d36 (KDP) for quasi-phase-matched structure.
Electro-Optic CoefficientsgT33 = 32 pm/V, gS33 = 31 pm/V,
gT31 =10 pm/V, gS31=8.6 pm/V,
gT22 = 6.8 pm/V, gS22= 3.4 pm/V,
Half-Wave Voltage, DC
Electrical field ||z, light ^z:
Electrical field|| x or y, light ||z:
3.03 KV
4.02 KV
Damage Threshold
100 MW/cm2 (10 ns, 1064nm)
Application:
Optical parametric oscillation, difference frequency mixing to generate tunable infrared wavelengths, and second harmonic generation..
Lithium niobate is particularly effective for second harmonic generation of low power laser diodes in the 1.3 to 1.55 µm range.,
For infrared generation by difference frequency mixing, the peak power limit is considerably lower than for 1.064 µm, being about 40 MW/cm2
The Sellmeier equations (l in µm ):
no2 = 4.9048 + 0.11768/(l2-0.04750)-0.027169l 2
ne2 = 4.5820 + 0.099169/(l 2-0.04443)-0.021950l2
The Fe:LiNbO3 and MgO:LiNbO3 crystals is available too. The MgO: LiNbO3 has similar effective nonlinear coefficients to pure LiNbO3. Its Sellmeier equations (for MgO dopant 7 mol%) are:
no2 = 4.8762+ 0.11554/(l2-0.04674)-0.033119l2
ne2 = 4.5469+ 0.094779/(l2-0.04439)-0.026721l2
LiNbO3s Specifications:
Material:
Laser grade LiNbO3
Orientation:
±0.5 o
Dimensional Tolerance:
±0.1mm
Surface quality:
20/10 Scratch/Dig per MIL-O-13830B
Flatness:
l/8 at 633 nm
Perpendicularity:
5 arc min
Parallelism:
better than 20 arc sec
Clear Aperture:
> Central 90%
AR Coating:
AR coating with R < 0.2% at center wavelength