Product ID: 6804
$100
LGS (La3Ga5SiO14) – Electro-optic Crystal – Customized Products
LGS(La3Ga5SiO14 )is a multifunctional intraocular crystal that can be used as an electro-optic crystal after considering and studying the interaction between electro-optic effect and optical rotation in functional crystals. The LGS electro-optic Q switch passes light along the Z direction of the crystal and applies an electric field along the X direction, which can make full use of the lateral electro-optic effect of the crystal to realize the Q-switch function of the LGS crystal. The electro-optic Q-switch made by LGS is actually a new kind of rotation-electro-optical Q-switch. Because of the effect of optical rotation, it can be used as a practical switch and a good Q-modulation result can be obtained. LGS crystal widens the new direction of exploring and discovering new electro-optic crystals from optically active crystals.
Note:
$100 is a deposit, not the final price of the product. Please contact us for price if needed.
Features
High damage threshold
Good optical rotation
Can withstand high and low-temperature changes
Stable physical and chemical properties
High electromechanical coupling coefficient (3 times of quartz)
Low equivalent series resistance
Crystal Specifications
| Orientation | ±15′ |
| Wavefront Distortion | <λ/8 @633nm |
| Extinction Ratio | >500:1 |
| Diameter Tolerance | +0.00mm/-0.05mm |
| Length Tolerance | ±0.2mm |
| Chamfer | <0.1mm @45° |
| Flatness | <λ/10 @633nm |
| Parallelism | <3‘ |
| Perpendicularity | <5’ |
| Surface Finish | 10/5 |
| AR Coating | <0.3% @1064nm |
Crystal Properties
| Point Group | 32 |
| Space Group | p321 |
| Resistivity | 4.0×1012Ω/cm-1 |
| Thickness | 0.13-0.5mm |
| Diameter | 50mm |
| Length | 90-100mm |
| Melting Point | 1470℃ |
| Density | 5.67g/cm3 |
| Mohs Hardness | 5.5 |
| Damage Threshold | 670MV/cm2 |
| Lattice Constant | a=b=0.8162nm,c=0.5087nm |
| Dielectric Constant | ε11=18.27 |
| ε33=55.26 | |
| Electro-optic Coefficient | γ11=2.3×10-12m/V |
| γ33=1.8×10-12m/V | |
| Piezoelectric Strain Constant（10-12） C/N | d11=6.3 |
| d14=-5.4 | |
| Phase Velocity m/s | 2750～2850 |
| Electro-mechanical Coupling Factor, K (%) | 0.28～0.46 |
| Solubility | No |
| Thermal Coefficient of Expansion | α11=5.15×10-6K-1 |
| α33=3.65×10-6K-1 |
KDP & DKDP Crystals - Electro-optic Crystal - Customized Products 
