| Sign In | Join Free | My himfr.com |
|
ANHUI CRYSTRO CRYSTAL MATERIALS CO., LTD. INNOVATOR FOR MAGNETO OPTICAL CRYSTALS
7 Years
| Ask Lasest Price | |
| Brand Name : | Crystro |
| Model Number : | CR210519-01 |
| Certification : | SGS/COC |
| Price : | Negotiable |
| Payment Terms : | T/T, Western Union, MoneyGram, Paypal |
| Supply Ability : | 2000pcs per month |
| Delivery Time : | 2-4 weeks |
Dia 2inch Thick 0.5mm Langasite Single Crystal LGS Substrate
Lanthanum gallium silicate ( La2Ga5SiO14 ) is a phenomenal invention. Though langasite was initially
developed as a laser crystal, it revealed a remarkable combination
of piezoelectric qualities, which opened up new opportunities to
use the LGS crystal in radio frequency devices. The main
applications of langasite crystals now is SAW filters and SAW
resonators. Experts agree that LGS is the best choice for
high-efficiency broad band frequency devices because it possesses
exceptional frequency-temperature characteristics, a very high
index of electromechanical coupling and unparalleled Q-factor.
Crystro's LGS crystal has High thermal stability,low equivalent
series resistance ratio and electro-mechanical coupling coefficient
is 3-4 times than quartz.
Main Properties:
| Point group | 32 |
| Airborne group | P32I |
| specific resistance | 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 |
| 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 | ε11=18.27 |
| ε33=55.26 | |
| Electro-optical coefficients | γ11=2.3×10-12m/V |
| γ33=1.8×10-12m/V | |
| Piezoelectric strain constant | d11=6.3 |
| (10-12)C/N | d14=-5.4 |
| Phase velocity,m/s | 2750～2850 |
| Electromechanical coupling coefficient, K[ %] | 0.28～0.46 |
| Solubility | None |
| Coefficient of thermal expansion | α11=5.15×10-6K-1 |
α33=3.65×10-6K-1 |
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
Applications:
electro-optic Q-switch
SAW device
BAW device
Sensor
High power high repetition rate all solid state laser
High and low temperature change laser
DOCUMENT:
LGS
Cryatal.pdf
|
|
