Lithium Niobate LiNbO3 Single Crystals For Fiber Optical Isolators And Circulators
Crystro High Quality Lithium Niobate LiNbO3 LN Single Crystals
Lithium niobate (LN), an outstanding and versatile material, has influenced our daily life for decades: from enabling high-speed optical communications that form the backbone of the Internet to realizing radio-frequency filtering used in our cell phones. This half-century-old material is currently embracing a revolution in thin-film LN integrated photonics. The success of manufacturing wafer-scale, high-quality, thin films of LN on insulator (LNOI), accompanied with breakthroughs in nanofabrication techniques, have made high-performance integrated nanophotonic components possible.
Crystro provides:
- LiNbO3 wedges used for fiber optical isolators and circulators.
- Reliable delivery
- Strict quality control
- Technical support
- Very competitive prices
LiNbO3 Crystal Applications:
1. Pockels Cells
2. Q-switches
3. Phase modulators
4. Surface acoustic wave(SAW) wafers
Basic Properties of LiNbO3:
| Growth method | Czochralski method |
| Crystal structure | Trigonal system |
| Lattice constant | a=b=5.148Å c=13.863 Å |
| Melting point | 1250℃ |
| Curie temperature | 1142 ℃ |
| Density | 4.64 g/cm3 |
| Mohs Hardness | 5 |
| Spectral transmission range | 0.4-2.9um |
| Refractive index | No=2.286 ne=2.203 (632.8nm) |
| Nonlinear coefficient | D33=34.45, d31=d15=5.95, d22=13.07 (PMV-1) |
| Electro-optic coefficient | γ13=8.6,γ22=3.4,γ33=30.8,γ51=28.0,γ22=6.00(pmv-1) |
| Spectral transmission range | 370 - 5000nm >68% (632.8nm) |
| Thermal expansion coefficient | A11=15.4 x 10-6/k, a33=7.5 x 10-6/k |
| Optical grade LiNbO3 | SAW grade LiNbO3 | |
| Orientation | X-cut, Z-cut (+/-0.2°) | Z-cut, Y-cut, |
| Y-cut 36° off, Y-cut 64° off, Y-cut 128° off | ||
| Primary Orientation Flat | 22mm+/-2mm (3-inch) | 22mm+/-2mm (3-inch) |
| 32mm+/-2mm (4-inch) | 32mm+/-2mm (4-inch) | |
| Standard Size | φ3"(76.2mm) +/-0.3mm | φ3" (76.2mm) +/-0.3mm |
| φ4" (100mm) +/-0.3mm | φ4" (100mm) +/-0.3mm | |
| φ6" (150mm) +/-0.3mm | φ6" (150mm) +/-0.3mm | |
| 10x10mm +/-0.1mm | 10x10mm +/-0.1mm | |
| Or others | Or others | |
| Thickness | 500μm +/-20μm | 500μm +/-20μm |
| 1000μm +/-20μm | 1000μm +/-20μm | |
| 350μm +/-20μm | 350μm +/-20μm | |
| Polishing | Single or Both side polished | Single or Both side polished |
| Surface Finish: 20/10 or 10/5 | Surface Finish: 20/10 or 10/5 | |
| TTV | ≤10um | ≤10um |
| Curie temperature | 1142℃ +/-0.7℃ | 1142℃ +/-3℃ |
| Edge chamfer | Edge rounding | Edge rounding |
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