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|Material:||Lithium Niobate (LiNbO3) Crystal Substrate Wafer||Density:||4.64g/cm3|
|Transparency Range:||420-5200nm||Absorption Coefficient:||~0.1%/cm @1064nm|
|Refractive Indices:||Ne=2.156, No=2.232@1064nm||Dimension Tolerance:||±0.05mm|
|Wedge Angle Tolerance:||±0.1°||Packing:||Individual Container For Each Substrate, Packed In Bag Filled With Inert Gas.|
5200nm LiNbO3 wafer,
optical Lithium Niobate wafer,
5200nm Lithium Niobate wafer
Lithium Niobate (LiNbO3) Crystal Substrate Wafer
LiNbO3 (Lithium niobate, LN) crystal is a negative uniaxial crystal and one of the most thoroughly characterized optical materials.
With its large electro-optic coefficients, wide optical transparency window, and availability of high optical quality crystals, LN (lithium niobate) crystal is often the material of choice for optical modulation and Q-switch at near-infrared and infrared wavelengths. For electro-optic modulators (EOM) the crystal can be z-cut with zero residual birefringence along the direction of light propagation or x-cut with non-zero residual birefringence and the maximized effective electro-optic coefficient. For Q-switch the crystal is typically z-cut with zero residual birefringence and an electric field is applied transverse to the direction of light propagation. The piezoelectric ringing in LN is a disadvantage at high repetition frequency, but can be overcome to some extent with proper piezoelectrically damped designs.
Basic Properties of LiNbO3
|Crystal Sturucture||Trigonal, Space group R3c, Point group 3m|
|Absorption Coefficient||~0.1%/cm @1064nm|
|Refractive Indices at 1064nm||ne=2.146, no=2.220@1300nm ne=2.156, no=2.232@1064nm ne=2.203, firstname.lastname@example.org|
|Thermal Expansion Coefficients (at 25℃ )||//a,2.0x10-6/K //a,2.2x10-6/K|
|Thermal Conductivity Coefficients||38 W/m/K at 25℃|
|Thermal Optical Coefficients||dno/dT=-0.874 x 10-6/K at 1.4μm dne/dT=39.073 x 10-6/K at 1.4μm|
|The Sellmeier Equations (λ in μm)||no2=4.9048+0.11768/(λ2-0.04750)-0.027169λ2 ne2=4.5820+0.099169/(λ2-0.04443)-0.02195λ2|
|Length or Thickness (mm)||≤100||≤50||0.35-0.5|
|Orientation||127.86°Y,64°Y,135°Y,X,Y,Z, and other cut|
|Front Side polishing||/||Mirror polished 5-15 Å|
|Back Side Lapping||/||0.3-1.0μm|
Crystro can offer other size and specification of wafers upon request.
LiNbO3 Crystal is widely used as frequency doublers for wavelength > 1μm and optical parametric oscillators (OPO) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices. Due to its large Electro-Optic (E-O) and Acousto-Optic (A-O) coefficients, LiNbO3 crystal is the most popular material for Pockel Cells, Q-switches and phase modulators, waveguide substrate and surface acoustic wave (SAW) wafers, etc.
LiNbO3 wedges used for fiber optical isolators and circulators.
Strict quality control
Very competitive prices
Contact Person: Wu