Non Linear LiNbO3 Lithium Niobate Crystal For SAW Filter
Factory Price Sell LiNbO3 Non-Linear Crystal
Lithium niobium crystal (LN)LiNbO3 is widely used in SAW filter, optical waveguide, photoelectricity modulator, frequency multiplication transducer and information storage as a functional crystal with excellent physical feature of anti high temperature and anti canker.
It has stable mechanical performance, and will appear different special feature after being doped differently.
LiNbO3 crystal combines low cost, good mechanical and physical properties as well as high optical homogeneity. Therefore, LiNbO3 wedges have been widely used in fiber isolators and circulators.
The possible applications:
- 1. EO Waveguide Phase Modulators
- 2. EO Waveguide Amplitude Modulators
- 3. Integrated Waveguide Photonics
- 4. Wave Guide Lasers
- 5. Polarizer for Optic Isolator
- 6.Quasi-phase Matching for SHG and OPO
Basic Properties of LiNbO3
| Crystal Sturucture | Trigonal, Space group R3c, Point group 3m |
| Melting Point | 1253℃ |
| Mohs Hardness | 5 |
| Density | 4.64g/cm3 |
| Deliquescence | None |
| Optical Homogeneity | ~5x10-5/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 |
| 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 |
Specification of LiNbO3 wafers:
| Orientation | X&Z-cut ±0.2° |
| Diameter | 50.8mm/76.2 mm/100mm ±0.3 mm |
| Orientation Flat(OF) | 22mm ±2 mm/32mm ±2 mm Perpendicular to X ±0.2° |
| Second Refer.Flat(RF) | Cw225°±0.5°from OF Cw315°±0.5°from OF |
| Thickness | 250um/500um/1000um ±5um or more |
| Surface Quality | Double sides polished; S/D:20/10 |
| TTV | ≤10um |
| WARP | ≤50um |
| Curie Temperature | 1142℃± 0.7℃ |
| Refractive Index | n.=2.2878±0.0002 n.=2.2033±0.0002 prism coupler method@632.8nm |
| Edge Beveling | Edge Roundind |
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