OST Photonics offers a variety of sizes and thicknesses of optical grade Lithium Niobate wafers(linbo3 wafers), with wafer diameters ranging from 2 inches to 4 inches, the thickness can be customized according to your requirements (generally above 0.18 mm). The orientations can be X/Y/Z etc. Congruent lithium niobate (CLN), near-stoichiometric lithium niobate (SLN), and Tm/Pr/Er/Fe/MgO doped lithium niobate wafers are also available upon request.
Optic Isolators
Periodically poled lithium niobate (PPLN) waveguides
EO Phase Modulators
Optical Modulator
Electro-optic Q-switches
Stable mechanical properties
Good machinability
Heat and corrosion resistance
High electro-optic and high nonlinear optic coefficients
Diameter: 2”, 3”, 4”
Orientations: X, Y, Z etc.
Thickness: 0.25mm, 0.5 mm, 1.0 mm etc.
Available items: crystal wafers, congruent lithium niobate (CLN) wafers, near-stoichiometric lithium niobate (SLN) wafers, Tm/Pr/Er/Fe/MgO doped LiNbO3 wafers, boules, blanks and customized optics
Material | LiNbO3 single crystal | |
Curie Temp | 1142±2.0℃ | |
Cutting Angle | X/Y/Z etc | |
Orientation Tolerance (±) | ≤15′ | |
Diameter | 2”/3”/4” | |
Diameter Tolerance (±) | ≤0.20 mm | |
Thickness | 0.18 ~ 0.5mm or more | |
Thickness Tolerance (±) | ≤0.025 mm | |
Primary Flat Length | 16mm/22mm/32mm | |
TTV | <1~5 µm | |
BOW | ± (25~40 um) | |
Warp | <= 35 µm | |
Orientation Flat | According to our standards or your requests | |
Surface Type | Single side polished(SSP)/double sides polished(DSP)/double sides lapped(DSL) | |
Polished Side Ra | <0.5nm | |
Polished Side Surface Quality | S/D 20/10 | |
Lapped Side Ra | General is 0.2-0.5 um or as customized | |
Edge Criteria | Compliant with SEMI M1.2 Standard/refer to IEC62276 | |
Quality | Free of crack (bubbles and inclusions) | |
Optical Doped | Er/Fe/MgO etc | |
Wafer Surface Criteria | Refractive index | No=2.2878/Ne=2.2033@632nm wavelength/prism coupler method. |
Contamination | None | |
Particles φ>0.3 um | <= 30 | |
Scratch , Chipping | None | |
Defect | No edge cracks, scratches, saw marks, stains | |
Packaging | Qty/Wafer box | 25pcs per box |
Material | Grade | Diameter | Growth direction |
LiNbO3 | optical | 2”/3”/4” | X/Y/Z/Y135 etc |
MgO:LiNbO3 | optical | 2”/3” | X/Z |
Fe:LiNbO3 | optical | 2”/3” | Z |
Tm:LiNbO3 | optical | 2”/3” | Z |
Pr:LiNbO3 | optical | 2”/3” | Z |
Er:LiNbO3 | optical | 2”/3” | X/Z |
Growth method | Czochralski method |
Crystal structure | M3 |
Lattice Constant | a=b=5.148 Å c=13.863 Å |
Melting point (℃) | 1250 |
Density(g/cm3) | 4.64 |
Hardness | 5 (Mohs) |
Refractive index | no=2.286 ne=2.203 at 632.8nm |
Nonlinear coefficient | d33=34.45, d31=d15=5.95, d22=13.07 (pmv-1) |
Electro-optical coefficient | γ13=8.6, γ22=3.4, γ33=30.8, γ51=28.0, γ22=6.00 (pmv-1) |
Optical transmittance | 370 ~ 5000nm and >68% at 632.8nm |
Thermal expansion | a11=15.4x10^-6/K, a33=7.5x10^-6/K |
