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LT LiTaO3 Crystal Belongs To 3m Crystal System Transverse Electro Optic Modulation

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Nanjing Crylink Photonics Co.,Ltd

LT LiTaO3 Crystal Belongs To 3m Crystal System Transverse Electro Optic Modulation

Country/Region china
City & Province shanghai shanghai
Categories Other Fiberglass Products
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Product Details

LiTaO3 crystal belongs to 3m crystal system. The transverse electro-optic modulation of the crystal can be used to measure the electric field. LiTaO3 has excellent electro-optic properties, it has higher electro-optic coefficient than LiNbO3, higher optical damage threshold, lower birefringence, wide transmission band, and high light transmittance. The crystals produced by different crystal growth methods have different optical damage thresholds, the LiTaO3 crystal prepared by top-seeded solution method is one order of magnitude higher than that of the same component crystal. As an electro-optical crystal for measuring an electric field, LiTaO3 is widely used because of its large electro-optic coefficient, which makes it highly sensitive in measurement ,and the wafer fabrication cost is low.
 

Physical and Chemical Properties

Point groupC3v-3m
Refractive index at 632.8nmn0=2.176
ne=2.186
Transparent Range0.4-5.0m
OrientationX,Z,36°Y,42°Y,128°Y
Melting point1650℃
Density7.45g/cm3
Mohs hardness5.5
Thermal expansion coefficientaa=16×10-6/K, ac=4×10-6/K
Specific heat0.06J/(kg°C)
Cell Parametersa=5.154,c=13.781
Curie Temperature605℃
Elastic Stiffness CoefficientCE11=2.33(×1011N/m2)
CE33=2.77(×1011N/m2)
Electro-optical coefficients@0.63mS13=7×10-12m/V
S33=30.3×10-12m/V
Heat Capacity (Cp)100 J / k.mol

Typical Optical Properties

Electro-Optic Coefficients r(10-12 mV-1) at 632.8 nm

rT138.4rS137
rT22 rS221
rT3330.5rS3330.3
rT51 rS5120

Nonlinear Optical Coefficients at 1-06 m (*d31=d15)

d22 / l d36KDP l4.4
d31 / l d36KDP l-2.7
d33 / l d36KDP l-4.1

Refractive Index at 632.8 nm

no2.1787
ne2.1821
no: TE modene: TM mode
Typical Acoustic Properties

Surface Acoustic Wave Properties

DescriptionPropagationDesignSurface Wave Velocity (m/s)Coupling Coefficient k (%)Group Delay Time Temp Coefficient (ppm/°C)
36Y CutX AxisSSBW41605 

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