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| Categories | Piezoelectric Effect Crystals |
|---|---|
| Brand Name: | Crystro |
| Model Number: | CR211011-03 |
| Certification: | SGS/COC |
| Place of Origin: | China |
| MOQ: | 1pc |
| Price: | USD 20~200/pc |
| Payment Terms: | T/T, Western Union, MoneyGram, Paypal |
| Supply Ability: | 2000pcs per month |
| Delivery Time: | 4-5 weeks |
| Packaging Details: | Transparent clean box |
| Material: | LiNbO3 Wafers X-cut 0.5mm Thickness Lithium Niobate Crystal |
| Surface Quality: | 20/10 |
| AR-Coating: | R＜0.2% @1550nm±40nm |
| Diameter: | up to 4inch |
| Thickness: | 0.5mm/1mm |
| Origin: | China |
| Delivery: | 1-4 weeks |
| Packing: | individual container for each substrate, packed in bag filled with inert gas. |
| Company Info. |
| ANHUI CRYSTRO CRYSTAL MATERIALS Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
LiNbO3 Wafers X-cut 0.5mm Thickness Lithium Niobate 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:
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 |
Specifications of LiNbO3 wedges
| Aperture | 1.0 x1.0 mm2 to 4 x 4 mm2 |
| Dimension Tolerance | ±0.05mm |
| Wedge Angle Tolerance | ±0.1° |
| Optical Axis Orientation | ±0.5° |
| Flatness | λ/4 @632.8nm |
| Surface Quality | 20-10 |
| AR-Coating | R＜0.2% @1550nm±40nm |
| Standard Size | 1.25mmx1.25mmx0.5mm with 13º or 15º wedge, phi=22.5º |
LiNbO3 is also a good acousto-optic crystal and used for surface acoustic wave (SAW) wafer and A-O modulators. Crystro provides acoustic (SAW) grade LiNbO3 crystals in wafers, as-cut boules, finished components and custom fabricated elements.
Typical SAW Properties
| Cut Type | SAW Velocity Vs (m/s) | Electromechanical Coupling Factor K2s(%) | Temperature Coefficient of Velocity TCV (10-6/℃) | Temperature Coefficient of Delay TCD (10-6/℃) |
| 127.86 ° Y-X | 3970 | 5.5 | -60 | 78 |
| Y-X | 3485 | 4.3 | -85 | 95 |
Typical Specifications
| Specifications | Boule | Wafer | ||
| Diameter | Φ3'' | Φ4'' | Φ3'' | Φ4'' |
| Length or Thickness (mm) | ≤100 | ≤50 | 0.35-0.5 | |
| 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 5-15 Å | ||
| Back Side Lapping | / | 0.3-1.0μm | ||
| Flatness (μm) | / | ≤15 | ||
| Bow (μm) | / | ≤25 | ||
Crystro can offer other size and specification of wafers upon request.
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