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
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 Coefficients | d33 = 34.4 pm/V d31 = d15 = 5.95 pm/V d22 = 3.07 pm/V | |
Efficiency NLO coefficients | deff =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 Coefficients | gT33 = 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
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
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 |