LiNbO3

Lithium niobate (LiNbO3) is a compound of niobium, lithium and oxygen, and it is a negative crystal (n0>ne). The deformed lithium niobate crystal is a material with multiple properties such as piezoelectric, ferroelectric, optoelectronic, nonlinear optics, and pyroelectric. 

Lithium niobate single crystal is an important material for linear and nonlinear optical applications. and it also has a photorefractive effect. it is widely used in optical communications, information processing, integrated optical circuits, image storage, harmonic generation, frequency doubling devices, parametric oscillation, 1064nm laser frequency doubling, quadruple frequency phase matching devices, SAW filter, Q-switch, electro-optical dimmer, parametric oscillator. and other aspects. 

For doped MgO:LiNbO3 crystal, its damage resistance threshold is more than doubled than that of pure LiNbO3 crystal.


Uses/Applications

Lithium niobate single crystal is an important material for linear and nonlinear optical applications.it is widely used in optical communications, information processing, integrated optical circuits, image storage, harmonic generation, frequency doubling devices, parametric oscillation, 1064nm laser frequency doubling, quadruple frequency phase matching devices, SAW filter, Q-switch, electro-optical dimmer, parametric oscillator and other aspects.

Features/Benefits

Multiple properties such as piezoelectric, ferroelectric, optoelectronic, nonlinear optics, and pyroelectric.
Photorefractive effect.

  • Growth Method

    Czochralski

    Crystal Structure

    Trigonal

    Lattice Constant

    a=b=5.148Å     c=13.863 Å

    Melting Point

    1250℃

    Curie Temperature

    1140℃

    Density

    4.64(g/cm3)

    Mohs Hardness

    5mohs

    Transmission Wavelength

    0.4-2.9μm

    Refractive Index

    no=2.286 ne=2.203 632.8nm

    Intensity of Spontaneous Polarization

    50×10C/cm

    Nonlinear Coefficient

    d22 = 2.1 d31 = - 4.5 d33 = -0.27 (pmv-1

    Electro-optic Coefficient

    γ13=8.6γ22=3.4γ33=30.8γ51=28.0,(pmv-1

    Optical Damage Threshold

    250 MW/cm2 @ 1064 nm, 10nsec. 

    Transmittance

    3705000nm >68%

    632.8nm

    Thermal Expansion

    //a, 2.0 x 10-6 / K
    //c, 16.7 x 10-6 / K

    Absorption Loss

    @ 1064 nm < 0.1 %/cm 

    Product Specifications

    Dimension

    Equal to or less than  Ø4″

    Surface Quality

    10/5

    Dimensional Tolerance

    Z axis: ±0.3mm
    X axis, Y axis: ±0.1mm

    Flatness

    v8 632.8nm

    Chamfer

    Less than 0.5mm, 45 º±5 º

    Coating

    R<0.2%1064nm

    Crystal Orientation Accuracy

    Z axis: 5′
    X, Y axis:<10′

    Wavefront Distortion

    <N4633nm

    Parallelism

    <10′

    Extinction Ratio

    >400:1(633nm)φ6mm beam

    Package

    Class 100 clean bag, Class 1000 super clean room


  • Dimension

    Equal to or less than  Ø4″


    Dimensional Tolerance

    Z axis: ±0.3mm

    X axis, Y axis: ±0.1mm