Jinan Crystrong Photoelectric Technology Co.,Ltd |
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Crystrong Mechanical Properties LiNbO3 Commonly Used Material For Pockels Cells, Q-Switches
Product overview:
LiNbO3 Crystal is widely used as frequency doublers for wavelength > 1 mm and OPOs pumped at 1064 nm as well as QPM devices.
LiNbO3 Crystal is widely used as frequency doublers for wavelength>1 µm and optical parametric oscillators(OPOs) pumped at 1064nm and quasi-phase-matched(QPM)devices.Additionally due to its large Electro-Optic (E-O)and Acousto-Optic(A-O)coefficients.
LiNbO3 is the most commonly used material for Pockels Cells,Q-Switches and phase nodulators,wavwguide substrate,and surface acoustic wave (SAW)
wafers,etc.we can provide high quality and large size LiNbO3 crystals for all of these applications.
Structural and Physical Properties of LiNbO3
Crystal Structure: | Trigonal, Space group Rjc, Point group 3m |
Cell Parameters: | a=5.148Å,c=13.863Å |
Melting Point: | 1253℃ |
Curie Temperature: | 1140℃ |
Density: | 4.64g/cm3 |
Elastic Stiffness Coefficients: | CE11=2.33(x 1011N/m2) |
CEJJ= 2.77(x 1011N/m2) |
Optocal and Electro-optical kaibukai Properties of LiNbO3
Transparency Range: | 420-5200nm |
Optical Homogeneity: | ~5X10-5/cm |
Refractive indices at 1064nm: | ne=2.146, na=2.220@1300nm |
ne=2.156, na=2.232@1064nm | |
ne=2.203, na=2.286@632.8nm | |
NLO Coefficients: | dJJ=86XdJ6(KDP) |
dJ1=11.6XdJ6(KDP) | |
d22=5.6XdJ6(KDP) | |
Effective NLO Coefficients: | deπ(Ⅰ)=dJ1sinθ-d22cossin3φ |
deπ(Ⅱ)=d22cos2θcos3φ | |
Electro-Optic Coefficients: | rTJJ=32pm/V, rsJJ=32pm/V |
rTJ1=10pm/V, rsJ1=8.6pm/V | |
rT22=6.8pm/V, rs22=3.4pm/V | |
Haif-Wave Voltage,DC | 3.03KV |
Electrical field//z, light z: | 4.02KV |
Electrical field//x or y, light// z: | |
Damage Threshold: | 100MW/cm2(10ns,1064nm) |
Thermal and Electrical Properties of LiNbO3
Melting Point: | 1250℃ |
Cruie Temperature: | 1140℃ |
Thermal Conductivity: | 38W/m@25℃ |
Thermal Expansion Coefficients(at 25℃) | //a,2.0x10-6/K |
//c,2.2 x10-6/K | |
Dielectric Constants: | εs11/εD=43 εT11/εD=78 |
εs11/εD=28 εsJJ /εD =43 | |
Piezoelectric Strain Constant: | D22=2.04(x10-11C/N) |
DJJ=19.22(X10-11C/N) |
Specifications
Transmitting wavefront distortion:less than λ/4 @633nm
Dimension tolerance:(W+-0.1mm) x(H+-0.1mm) x (L+-0.2mm)
Clear aperture:>90% central area
Flatness:λ/8 @633nm
Scratch/Dig code: 20/10 to MIL-PRF-13830B
Parallelism:better than 20 arc seconds
Perpendicularity:5 arc minutes
Angle tolerance:<+-0.5°