LGS Crystal (Lanthanum Gallium Silicate) Description
LGS Crystal is a multifunctional crystal. The interaction between the electro-optical effect and optical rotation in the functional crystal has been considered and studied, and it can be used as an electro-optical crystal. The LGS electro-optical Q switch transmits 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-optical effect of the crystal to realize the Q-switching function of the LGS crystal. LGS electro-optic Q-switch is actually a new type of rotary electro-optic Q-switch. Due to the existence of the optical rotation effect, it can be used as a practical switching device to obtain a good Q-switching effect. LGS crystal broadens the exploration and discovery of new types of electro-optic crystals from optically active crystals.
LGS Crystal (Lanthanum Gallium Silicate) Specifications
Material Properties
Point group
|
32
|
Space group
|
P32I
|
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
|
Coefficient of thermal expansion
|
aa=16×10-6/K, ac=4×10-6/K
|
Optical damage threshold
|
670MV/cm2
|
Crystal cell parameters
|
a=b=0.8162nm,c=0.5087nm
|
Dielectric constant
|
ε11=18.27
|
ε33=55.26
|
Electro-optic coefficient
|
γ11=2.3×10-12m/V
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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
|
Electromechanical coupling coefficient K [%]
|
0.28~0.46
|
Coefficient of thermal expansion
|
α11=5.15×10-6K-1
|
α33=3.65×10-6K-1
|
LGS Crystal (Lanthanum Gallium Silicate) Applications
- Photoelectric Q switch
- SAW device
- BAW device
- Sensor
- High power and high repetition rate all solid-state laser
- High and low temperature variable laser
LGS Crystal (Lanthanum Gallium Silicate) Packaging
Our LGS Crystal (Lanthanum Gallium Silicate) is carefully handled during storage and transportation to preserve the quality of our product in its original condition.