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Rotation Electro Optical Pockels Crystals Q Switched Crystal 10mm / 40mm Length

Categories Piezoelectric Effect Crystals
Brand Name: Crystro
Model Number: CR20200107-7
Certification: SGS
Place of Origin: China
MOQ: 1pc
Price: Negotiable
Payment Terms: T/T, Western Union, MoneyGram, Paypal
Supply Ability: 2000pcs per month
Delivery Time: 2-4 weeks
Packaging Details: Transparent clean box
Type: Blank
Polish: 10/5
Diameter: 20mm/50mm/60mm
Length: 10mm/40mm/60mm
certification: SGS
model: CR20200107-7
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Rotation Electro Optical Pockels Crystals Q Switched Crystal 10mm / 40mm Length

Piezoelectric Langasite La3Ga5SiO14 (LGS) Crystal Can be Customized


Langasite crystal (La3Ga5SiO14,LGS), belonging to the space group P321, point group 32, has been reported to be promising new piezoelectric materials for fabrication of surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices. The devices made of langasite crystal could be used at a high temperature up to 900℃ because of its high thermal stability.


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 un unparalleled Q-factor.


Main Properties:


Crystal Structurerigonal system, group 33 a= 8.1783 c = 5.1014
Growth MethodCzochralski
Hardness6.6 Moh's
Density5.754 g/cm3
Melt Point1470 o C ( phase transition point: N/A)
Thermal expansion (x10-6/ oC)α 11: 5.10 α 33: 3.61
Acoustic velocity, SAW2400 ( m/sec )
Frequency constant, BAW1380 ( kHz/mm )
Piezoelectric couplingK2 (%) BAW: 2.21 SAW: 0.3
InclusionsN0
Point group32
Airborne groupP32I
specific resistance4.0×1012Ω/cm-1
Thickness0.13-0.5mm
Diameter50mm
Length90-100mm
Melting point1470℃
Density5.67g/cm3
Mohs hardness5.5
Thermal expansion coefficientaa=16×10-6/K, ac=4×10-6/K
Photo damage threshold670MV/cm2
Cell Parametersa=b=0.8162nm,c=0.5087nm
Dielectric constantε11=18.27
ε33=55.26
Electro-optical coefficientsγ11=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/s2750~2850
Electromechanical coupling coefficient, K[ %]0.28~0.46
SolubilityNone
Coefficient of thermal expansionα11=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

Cheap Rotation Electro Optical Pockels Crystals Q Switched Crystal 10mm / 40mm Length for sale
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