Nanjing Crylink Photonics Co.,Ltd
Growing crystal, Lingling Value.
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Material and Specifications
| Point group | 32 |
| Airborne group | P32I |
| specific resistance | 4.0×1012/cm-1 |
| Thickness | 0.13-0.5mm |
| Diameter | 50mm |
| Length | 90-100mm |
| Melting point | 1470℃ |
| Density | 5.67g/cm3 |
| Mohs hardness | 5.5 |
| Thermal expansion coefficient | aa=16×10-6/K, ac=4×10-6/K |
| Photo damage threshold | 670MV/cm2 |
| Cell Parameters | a=b=0.8162nm,c=0.5087nm |
| Dielectric constant | 11=18.27 |
| 33=55.26 | |
| Electro-optical coefficients | 11=2.3×10-12m/V |
| 33=1.8×10-12m/V | |
| Piezoelectric strain constant (10-12)C/N |
d11=6.3 |
| d14=-5.4 | |
| Phase velocity,m/s | 2750～2850 |
| Electromechanical coupling coefficient, K[ %] | 0.28～0.46 |
| Solubility | None |
| Coefficient of thermal expansion | 11=5.15×10-6K-1 |
| 33=3.65×10-6K-1 |
LGS crystal for Q-switch
| Maximum operating frequency | 50KHz |
| Maximum output power | 7.5W |
| Pulse width | 46ns |
| Energy output -40℃ | 155mJ |
| Energy output +50℃ | 163mJ |
| Room temperature energy output | 167mJ |
| Electro-optic conversion efficiency | 1.26% |
Comparative properties of piezoelectric crystals
| Crystal Propertie |
Quartz | LGS | Li2B4O7 | LiTaO3 |
| Electromechanical Coupling Factor K, %(BAW) | 7 | 15.8 | 24 | 47 |
| Frequency Spacing f, % | 0.25 | 0.9 | 4 | 7 |
| Q-Factor Q, ×103 | 100 | 50 | 10 |