Modules or Types:
Various types of crystals are available upon your request:
Specifications:
| Crystal Materials | MgO(5mol%):LiNbO3 crystals | Size | Customized |
| Size Tolerance | +/-0.1mm | Length Tolerance | +/-0.2mm |
| Surface Quality | 20/10 S/D | Parallelism | <20 arc seconds |
| Flatness | < Lambda/10 @633nm | Chamfer | 0.1-0.3mmx45° |
| Chips | <0.15mm | Side Surface | Fine ground |
| Orientation Tolerance | < 10 arc minutes | Wavefront Distortion | <Lambda/4@633nm |
| Extinction Ratio | >200:1 | Coating | AR/AR@1064nm or customized |
| Damaging Threshold | >300mW/cm^2@1064nm 10nS 10Hz pulse | Electrode on Side Surface | Chrome gold electrode (Cr+Au) |
Basic Properties:
| Crystal Structure | Trigonal, space group R3c | Cell Parameters | a = 0.515, c = 13.863, Z = 6 |
| Melting Point | 1255±5℃ | Curie Point | 1140±5℃ |
| Mohs Hardness | 5 | Density | 4.64 g/cm3 |
| Absorption Coefficient | ~ 0.1%/cm @ 1064nm | Solubility | insoluble in H2O |
| Relative Dielectric Constant | eT11/e0: 85 eT33/e0: 29.5 |
Thermal Expansion Coefficients( @ 25℃) | ||a, 2.0 x 10-6 /K ||c, 2.2 x 10-6 /K |
| Thermal Conductivity | 38 W /m /K @ 25℃ | ||
Linear Optical Properties:
| Transparency Range | 420-5200nm | Refractive Indices | ne=2.146, no = 2.220 @ 1300nm ne= 2.156, no = 2.232 @ 1064nm ne= 2.203, no = 2.286 @ 632.8nm |
| Optical Homogeneity | ~ 5 x 10-5 /cm | Sellmeier Equations (λ in mm) |
n2o (λ) = 4.9048+0.11768/(l2 - 0.04750) - 0.027169l2 n2e (λ) = 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 1300nm deff =5.3 pm/V or ~13.6 x d36(KDP) for OPO pumped at 1064nm 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 Electrical field||z, light ^z Electrical field||x or y, light||z |
3.03 KV 4.02 KV |
MgO:LiNbO3 crystals have become one of the most broadly used materials for Q-switches and phase modulators for their high EO coefficients, MgO:LiNbO3 has a higher damaging threshold than the non-doping LiNbO3 crystals. With an electric field applied transverse to the direction of light propagation, Pockels cells based on LiNbO3 can be configured to operate at a lower voltage than Pockels cells based on KD*P. LiNbO3 can also be a good choice for infrared wavelengths up to 3.0µm.
Hangzhou Shalom EO offers high-quality polished, AR coating and Au-Cr electroded MgO:LiNbO3 crystals used in pockels cells, the MgO doping of 0.6%,1.0%, and 5% is available. A series of lithium-niobate products including SAW LiNbO3 Wafers, Nonlinear LiNbO3 and MgO:LiNbO3, LiNbO3 Crystals for EO Modulations, Optical Grade LiNbO3 Wafers, and MgO:PPLN Crystals, LiNbO3 Pockels Cells are also procurable.
