Optical Glass Surface Acoustic Wave (SAW) Wafers Linbo3 Crystal

Optical Glass Surface Acoustic Wave (SAW) Wafers LiNbO3 CrystalLiNbO3 crystals are the most commonly used material for pockel cells, Q-switches and phase modulators, waveguide substrates, surface acoustic wave (SAW) wafers, etc.Lithium niobate (LiNbO3, LN) crystals doped with iron (Fe:LiNbO3) is an attractive photorefractive material, due to high photorefractive sensitivity, high electro-optic coefficients and diffraction efficiency, chemomechanical properties. Fe:LiNbO3 crystals are grown by Czochralsky method and available in large size. Wide range of available dopants and levels enable to adjust material properties for particular applications. What is more, Fe:LiNbO3 crystals feature ease to handle, low cost, therefore suitable for volume production.Main featuresHigh electro-optic coefficient (r41=5 pm/V)High phase conjugation efficiencyAvailable in large size elements or wafers up to 3"Customization available upon requestApplication examplesSpatial light modulatorsOptical switchesHolographic recordingOptical waveguidesMain propertiesChemical formula: Fe:LiNbO3Crystal structure: Trigonal, 3mDensity: 4,64 g/cm3Mohs hardness: 5Transparency range : 0,35 - 5,5 μmRefractive indices @0,63 μm: ne = 2,20 no = 2,29Electro-optic coefficients: r22 = 6,8 pm/V r31 = 10 pm/V r33 = 32 pm/VDielectric constants: e11 = 85 e33 = 30Manufacturing accuracy of Optical LiNbO3 Crystal or according to customer's need Growth MethodCzochralskiCrystal StructureTrigonalLattice Constanta=b=5.148Å     c=13.863 ÅMelting Point1250ºCCurie Temperature1140ºCDensity4.64(g/cm3)Mohs Hardness5(mohs)Transmission Wavelength0.4-2.9μmRefractive Indexno=2.286 ne=2.203 (632.8nm)Intensity of Spontaneous Polarization50×10C/cmNonlinear Coefficientd22 = 2.1 d31 = - 4.5 d33 = -0.27 (pmv-1)Electro-optic Coefficientγ13=8.6,γ22=3.4,γ33=30.8,γ51=28.0,(pmv-1)Optical Damage Threshold250 MW/cm2 @ 1064 nm, 10nsec. Transmittance370~5000nm >68%(632.8nm)Thermal Expansion//a, 2.0 x 10-6 / K//c, 16.7 x 10-6 / KAbsorption Loss@ 1064 nm < 0.1 %/cmMaterialDomestic or foreign materials are selected based on clients' requestsDimensionEqual to or less than  Ø4″Dimensional ToleranceZ axis: ±0.3mmX axis, Y axis: ±0.1mmSurface Quality10-5ChamferLess than 0.5mm, 45 º±5 ºCrystal Orientation AccuracyZ axis: 5′X, Y axis: