LiNbO3 single crystal
Lithium niobate crystal has excellent electro-optic, acousto-optic, piezoelectric and nonlinear properties, which can be widely used in civil and military fields. With the development of photoelectric technology, more and more attention has been paid on the application of lithium niobate crystals in national defense technology. LiNbO3 crystal is a special multifunctional crystal, which has good nonlinear properties. The nonlinear optical coefficient is large and the non-critical phase matching can be achieved by the LiNbO3 crystal. As an electro-optic crystal, it has been used as an important optical waveguide material. As a piezoelectric crystal, it can be used in the production of low-frequency SAW filter, high-power high-temperature ultrasonic transducer and so on. The doped lithium niobate materials can also be used widely. Mg:LN crystal can greatly improve the laser damage threshold and promote the application of lithium niobate crystal in nonlinear optical field. Nd:Mg:LN crystal can realize the frequency doubling effect. Fe:LN crystal can be used in the optical volume holographic storage system.
Applications:
Integrated Wave guide Photonics
Wave Guide Lasers
Polarizer for Optic Isolator
EO Waveguide Phase Modulators
EO Waveguide Amplitude Modulators
Quasi-phase Matching for SHG and OPO
Basic Properties
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Crystal Structure
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Trigonal, point group 3m
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Lattice Parameters
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a=5.148Å, c=13.863Å
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Density
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4.64g/cm3
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Melting Point
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1250℃
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Curie Point
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1142±3℃
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Mohs Hardness
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5
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Dielectric Constant
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ε11/ε0=85; ε33/ε0=29.5
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Thermal Conductivity
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38W/m/℃ at 25℃
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Thermal Expansion Coefficient
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a1=a2=2×10-6/℃, a3=2.2×10-6/℃ at 25℃
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Piezoelectric Strain Constant
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d22=2.04×10-11C/N, d33=19.22×10-11C/N
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Refractive Index
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no=2.2827 ± 0.0003 ne=2.1928± 0.0003
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Electro-optic Coefficient
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r33 30.4pm/V
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The LiNbO3 crystal specification blank provided by Shanghai Institute of Optics and Fine Mechanics.
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Diameter
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Ø76.2mm
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Ø100mm
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Length
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≤150mm
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≤100mm
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Direction
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127.86°Y、64°Y、X、Y、Z，or with specific requirements
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Crystal plate
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Diameter
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Ø76.2mm
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Ø100mm
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Thickness
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0.25mm and thicker
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0.25mm and thicker
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Direction
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127.86°Y、64°Y、X、Y、Z，or with specific requirements
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Reference Plane Direction
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X、Y、Z，or with specific requirements
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Reference Plane Width
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22±2mm or with specific requirements
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Smooth Finish
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10/5
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TTV
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＜10um
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We can provide the appropriate LiNbO3 crystal with specific requirements (different blanks and crystal plates)
