Product Details
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.
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 | |
Company Profile
Crylink is a manufacturer and supplier of Single Crystal Materials and
optical components used in lasers, imaging and other optical areas.
Crylink is one of the high tech company of Nanjing Institute of Advance
Laser Technology(NIALT), which is the only one industrialization base of Shanghai
Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences.
Our peoduct mainly include laser crystal,nonlinear crystal, Q-switch crystal,laser,scintillator crystal , optic crystal and Piezoelectric crystal.
Crylink
——growing crystals, linking values
We are seller of crystals. At same time, we are producer of
crystals.
It is a long and arduous process from seed crystal to the desired
single crystal, the composition of the crystal changes through
three states and eventually grows into beautiful crystals. We
witness the growth process of each crystal and clearly know
technologies of each step in the crystal growth process, which
means that we can directly provide customers with crystals that
satisfied customer requirements.
We create value. At same time, we link value.
From company to individual, we all pursue the word "value".
Individual is valuable in society, enterprise is valuable in the
industry. We cherish the existence of value. We hope to set the
enterprise’ value as start pointing, expand to the surrounding,
extend the value from the customer to the supplier. Linking
enterprise and the industry more closer, to create more value.