Product Code : CO-LiNbO3-5N-CU
Lithium Niobate (LiNbO3) crystal is widely used as frequency doublers for wavelength > 1mm and optical parametric oscillators (OPOs) 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 commonly used material for Pockel Cells, Q-switches and phase modulators, waveguide substrate, and surface acoustic wave (SAW) wafers, etc. LiNbO3 is also a good acousto-optic crystal and used for surface acoustic wave (SAW) wafer and A-O modulators. ATT provides acoustic (SAW) grade LiNbO3 crystals in wafers, as-cut boules, finished components and custom fabricated elements.
Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.
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Product Information
Lithium Niobate (LiNbO3) crystal is widely used as frequency doublers for wavelength > 1mm and optical parametric oscillators (OPOs) 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 commonly used material for Pockel Cells, Q-switches and phase modulators, waveguide substrate, and surface acoustic wave (SAW) wafers, etc. LiNbO3 is also a good acousto-optic crystal and used for surface acoustic wave (SAW) wafer and A-O modulators. ATT provides acoustic (SAW) grade LiNbO3 crystals in wafers, as-cut boules, finished components and custom fabricated elements.
Lithium Niobate Crystal is an inorganic material, and a negative crystal with piezoelectric, ferroelectric, photoelectric, nonlinear optical, and thermoelectric properties. It has an optical refractive effect. It is a good piezoelectric conversion material. As an electro-optical material in optical communication, it is widely used in parametric oscillators, double frequency, acoustic and optical devices, and optical modulators. The doping of MgO can effectively improve the damage resistance valve value of the crystal.
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.
Synonyms
Periodically poled lithium niobate (PPLN), Lithium niobium oxide, Lithium methaniobate, Niobium lithium oxide, Lithium niobate(V), Lithium niobium trioxide, Lithium metaniobatem, Stoichiometric lithium niobate, SLN
LiNbO3 Crystal Specification
Size：customized
LiNbO3 Q-Switch Specifications
| Size | 9×9×25mm3 or 4×4×15mm3 |
| Other size is available upon request | |
| Tolerance of size | Z-axis：±0.2mm |
| X-axis and Y-axis：±0.1mm | |
| Chamfer | ＜0.5mm @ 45° |
| Accuracy of orientation | Z-axis：＜±5′，X-axis and Y-axis：＜±10′ |
| Parallelism | ＜20″ |
| Finish | 10/5 |
| Flatness | λ/8 at 633nm |
| AR-coating | R＜0.2% @ 1064nm |
| Electrodes | Gold/Chrome plated on X-faces |
| Wavefront distortion | ＜λ/4 @ 633nm |
| Extinction ratio | ＞400:1 @ 633nm，Φ6mm beam |
| Electro-optic coefficients | R33=32pm/V |
| R31=10pm/V | |
| R22=6.8pm/V | |
| Refractive retardation | Γ=лLnr22V/λd |
Per your request or drawing
We can customized as required
Standard Specifications of laser grade LiNbO
| Transmitted wavefront distortion | better than l/4 @ 633nm | |||
| Dimension tolerance | (W±0.1mm) x (H±0.1mm) x (L±0.2mm) | |||
| Clear aperture | over 90% central diameter | |||
| Flatness | l/8@633nm | |||
| Surface quality | 20/10 Scratch/Dig | |||
| Parallelism | better than 20 arc sec | |||
| Perpendicularity | 5 arc min | |||
| Angle tolerance | Dq <0.5°, Df <0.5° | |||
| AR-coating | dual wave band AR coating at 1064/532nm on both surfaces,with R<0.2% at 1064nm and R<0.5% at 0.532nm per surface | |||
| Type | Boule | Wafer | ||
| Specifications | ||||
| Diameter | Φ3″ | Φ4″ | Φ3″ | Φ4″ |
| Length or Thickness (mm) | ≤100mm | ≤50mm | 0.35-0.5mm | |
| Orientation | 127.86°Y，64°Y，135°Y，X，Y，Z，and other cut | |||
| Ref. Flat Orientation | X，Y | |||
| Ref. Flat Length | 22±2mm | 32±2mm | 22±2mm | 32±2mm |
| Front Side Polishing | Mirror polished 5-15Å | |||
| Back Side Lapping | 0.3-1.0μm | |||
| Flatness（μm） | ≤15 | |||
| Bow（μm） | ≤25 | |||
Per your request or drawing
We can customized as required
Specification For Optical Waveguide
| Operating wavelength range | 1.525-1.605μm |
| Extinction ratio | ＜20dB |
| Half wave voltage | ＜6V |
| DC bias voltage | ＜8V |
| Input characteristic impedance | 50Ω |
| Light reflection | ≤-50dB |
| Maximum input electric power | 20dBm |
| Maximum input optical power | 10-100mW |
| Storage temperature | -40-85°C |
| Operating temperature | -40-70°C |
Per your request or drawing
We can customized as required
Properties（Theoretical）
| Compound Formula | LiNbO3 |
| Molecular Weight | 147.85 |
| Appearance | Colorless solid or off-white powder |
| Melting Point | 1250 °C |
| Density | 4.64 g/cm3 |
| Solubility in H2O | Insoluble |
| Crystal Phase / Structure | Trigonal |
| Thermal Conductivity | 5.6 W/m·K |
| Exact Mass | 147.907125 |
| Monoisotopic Mass | 147.907125 |
| Crystal structure | trigonal |
| Space group | R3C |
| Density | 4.64g/cm3 |
| Mohs hardness | 5 |
| Optical homogeneity | ~5×10-5/cm |
| Transparency range | 420–5200nm |
| 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, no=2.286@632.8nm | |
| Sellmeier equations (λ, μm) | no2 =4.9048+0.11768/(λ2–0.04750) –0.027169λ2 |
| ne2= 4.5820+0.099169/(λ2–0.04443)–0.021950λ2 | |
| Thermal expansion coefficient@25°C | //a, 2.0×10-6/K |
| //c, 2.2×10-6/K | |
| Thermal optical coefficient | dno/dT=-0.874×10-6/K at1.4µm |
| dne/dT=39.073×10-6/K at1.4µm |
Piezoelectric Property
| Elastic Stiffness Coefficient cij/(1010N/m2) | c11 | c12 | c13 | c14 | c33 | c44 |
| 20.3 | 5.3 | 7.5 | 0.9 | 24.5 | 6.0 | |
| Elastic Compliance Coefficient sij/(10-12m2/N) | S11 | S12 | S13 | S14 | S33 | S44 |
| 5.78 | -1.01 | -1.47 | -1.02 | 5.02 | 17.0 | |
| Piezoelectric Strain Constantdij/(10-11C/N) | d11 | d15 | d22 | d31 | d33 | |
| 8 | 7.4 | 2.04 | -0.086 | 1.62 | ||
| Dielectric Constant | εT11/ε0 | εT11/ε0 | ||||
| 78 | 32 | |||||
| Electromechanical Coupling Coefficient kij(%) | k15 | k31 | ||||
| 68 | 50 | |||||
Nonlinear Optical Properties
| NLO Coefficients | d33=34.4pm/V |
| d31=d15=5.95pm/V | |
| d22=3.07pm/V | |
| Efficiency NLO Coefficients | deff =5.7pm/V or ~14.6xd36 (KDP) for frequency doubling 1300nm; |
| deff =5.3pm/V or ~13.6xd36 (KDP) for OPO pumped at 1064nm; | |
| deff =17.6pm/V or ~45xd36 (KDP) for quasi-phase-matched structure. | |
| Electro-Optic Coefficients | gT33 =32pm/V, gS33 = 31pm/V, |
| gT31 =10pm/V, gS31=8.6pm/V, | |
| gT22=6.8pm/V, gS22=3.4pm/V, | |
| Half-Wave Voltage, DC Electrical field||z, light^z: Electrical field||x or y, light||z: | 3.03KV |
| 4.02KV | |
| Damage Threshold | 100MW/cm2 (10ns, 1064nm) |
LiNbO3 Crystal features
Wide transparency range
High electro-optic efficiency
Stable mechanical and chemical properties
Not easy to deliquesce
High temperature stability
Large electro-optic coefficient
Easy to grow into large crystal
Low absorption loss
Low damage threshold
Small volume
Applications of LiNbO3 Crystal
Used in Optical Communication
Used in 532 nm laser
Medical Applications
Used in 2940nm laser
Used in Pulse range finder
Used in Laser target indicator
Used in interdigital transducers, EO, pyroelectric IR detectors, etc.
Used as a substrate material for RF surface acoustic wave (SAW) filters.
Used in linear optics, motion detectors, and cell phones for their optical, piezoelectric, and pyroelectric properties.
Packing of LiNbO3 Crystal
Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.
ATTs’ LiNbO3 Crystal is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition
Chemical Identifiers
| Linear Formula | LiNbO3 |
| CAS #: | 12031-63-9 |
| MDL Number | MFCD00011080 |
| EC No. | 234-755-4 |
| Beilstein/Reaxys No. | N/A |
| Pubchem CID | 23665650 |
| IUPAC Name | lithium; oxido(dioxo)niobium |
| SMILES | [Li+].[O-][Nb] (=O)=O |
| InchI Identifier | InChI=1S/Li.Nb .3O/q+1;;;;-1 |
| InchI Key | GQYHUHYESMUTHG-UHFFFAOYSA-N |
