Good Physical And 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 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 |
| Melting Point: | 1253℃ |
| Curie Temperature: | 1140℃ |
| Mohs Hardness: | 5 |
| 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 |
| 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
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°
AR coating:dual wave band AR coating at 1064/532 nm on both
surface,with R<0.2% at 1064nm
and R<0.5% at 532nm per surface.Other coatings are avaliable
upon request.
