Fortune Optronics accumulates rich experience in growing and developing LiNbO3 Crystal (LN Crystal). LiNbO3 substrates with diameters of 3 inches, 4 inches and 5 inches are available in large quantity. We could provide prompt delivery (usually 3 days upon receipt of the payment.)
| Basic Properties |
|
| Crystal Structure |
Trigonal, point group 3m |
| Lattice Parameters |
a=5.148Å, c=13.863Å |
| Density |
4.64 g/cm3 |
| Melting Point |
1250 °C |
| Curie Point |
1142?? |
| Mohs Hardness |
5 |
| Dielectric Constant |
e11/e0 = 85; e33/e0 = 29.5 |
| Thermal Conductivity |
38 W/m/°C at 25°C |
| Thermal Expansion Coefficient |
a1=a2 =2x10-6/°C, a3=2.2x10-6/ °C at 25°C |
| Piezoelectric Strain Constant |
d22 = 2.04 x 10-11 C/N, d33 = 19.22x10-11 C/N |
| Elastic Stiffness Constant |
CE11 = 2.04x1011 N/m2, CE33 = 2.46x1011 N/m2 |
| Refractive Indexes |
n0=2.286 ne=2.203 @632.8nm |
| Refractive Indexes Grade |
(633nm)=5x10-5/cm |
| Nonlinear Coefficients (pmV-1) |
d31=11.6 |
| d33=86 |
| d22=5.6 |
| Electro-optic Coefficients pm/V |
r33=30.8 |
| r31=8.6 |
| r22=3.4 |
| r51=28 |
| Transparency rate |
370~5000nm |
| =68%@633 nm |
| Optical and NLO Properties |
| Transparency Region |
3700 ~ 5000 nm |
| Sellmeier Equations (l in mm) |
no2 = 4.9048+0.11768/(l2-0.0475)-0.027169l2 |
| ne2 = 4.5820+0.099169/(l2-0.04443)-0.02195l2 |
| Optical Homogeneity |
Dn ~ 5x105/cm2 |
| Nonlinear Coefficients |
deff=13.6 d36(KDP) for OPO at 1064 nm |
| deff =14.6 d36(KDP) for SHG at 1300 nm |
| deff =45.0 d36(KDP) for QPM |
| Refractive Indexes |
none |
| 2.2202.146@ 1300 nm |
| 2.3222.156@ 1064 nm |
| 2.2862.203@ 632.8 nm |
| Electro-optic Coefficients (pm/V) |
Low frequencyHigh frequency |
| g333231 |
| g31108.6 |
| g226.83.4 |
| Damage Threshold |
> 250 KW/cm2 at 1064 nm (10 ns) |
| Linear Optical Properties |
| Transparency Range: 420-5200nm |
| Refractive Indices: |
| ne=2.146, no = 2.220 @ 1300 nm |
| ne= 2.156, no = 2.232 @ 1064 nm |
| ne= 2.203, no = 2.286 @ 632.8nm |
| Optical Homogeneity: ~ 5 x 10-5 /cm |
| Sellmeier Equations (l in mm): |
| n2o (l) = 4.9048+0.11768/(l2 - 0.04750) - 0.027169l2 |
| n2e (l) = 4.5820+0.099169/(l2 - 0.04443) - 0.021950l2 |
| Nonlinear Optical Properties |
|
| NLO Coefficients |
d33 = 34.4 pm/V |
| d31 = d15 = 5.95 pm/V |
| d22 = 3.07 pm/V |
| Efficiency NLO Coefficients |
deff =5.7 pm/V or ~14.6 x d36 (KDP) for frequency doubling 1300 nm; |
| deff =5.3 pm/V or ~13.6 x d36 (KDP) for OPO pumped at 1064 nm; |
| deff =17.6 pm/V or ~45 x d36 (KDP) for quasi-phase-matched structure. |
| Electro-Optic Coefficients |
gT33 = 32 pm/V, gS33 = 31 pm/V, |
| gT31=10 pm/V, gS31=8.6 pm/V, |
| gT22 = 6.8 pm/V, gS22=3.4 pm/V, |
| Half-Wave Voltage, DC |
3.03 KV |
| Electrical field||z, light||z: |
4.02 KV |
| Electrical field||x or y, light||z: |
|
| Damage Threshold |
100 MW/cm2 (10 ns, 1064nm) |
| Standard Specifications of laser grade LiNbO3 crystals: |
| Transmitted wavefront distortion |
better than l/4 @ 633nm |
| Dimension tolerance |
(W?.1mm) x (H?.1mm) x (L?.2mm) |
| Clear aperture |
over 90% central diameter |
| Flatness |
?/8 @ 633nm |
| Surface quality |
20 /10 Scratch/Dig |
| Parallelism |
better than 20 arc sec |
| Perpendicularity |
5 arc min |
| Angle tolerance |
Dq < 0.5o, Df < 0.5o |
| AR-coating |
Per your requirements | |
Optical Windows
