LiNbO3 (LN) crystal is widely used as frequency doublers for wavelength greater than 1000μm and optical parametric oscillators (OPOs) pumped at 1064 nm and quasi-phase-matched (QPM) devices. Due to its unique electro-optical, photoelastic, piezoelectric and non-linear properties, Lithium Niobate is widely used in a variety of integrated and active acousto-optical devices. The material is Czochralsky grown and poled along Z-axis.
Main properties of LiNbO3 Crystal:
| Chemical Formula | LiNbO3 |
| Lattice Constant,A | a=b=5.148 Å, c=13.863 Å |
| Melting Point | 1250℃ |
| Density | 4.64g/cm3 |
| Curie Temperature | ~ 1140℃ |
| Mohs Hardness | 5 |
| Thermal Expansion | a11 =15.4×10-6/K a33 =7.5×10-6/K |
| Thermal Conductivity, W/(m K) at 300 K | 5.6 |
| Refractive Indices | n0 =2.286 ne =2.203 @632.8nm |
| Nonlinear Optical Coefficients, p/m/V at 1064 nm | d31 = -4.5 d33 = -0.27 d22 = 2.1 |
| Electro-Optical Coefficients, pm/V at 633nm | γT33 =31, γs 31=9, γs 22 =3.4 |
| 420~ 5200nm >68% @632.8nm | |
| The Sellmeier equations (λ: um) | n02(λ)=4.9048+0.11768/(λ2-0.04750)-0.027169×λ2 ne2(λ)=4.5820+0.099169/(λ2-0.04443)-0.021950×λ2 |
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