| Applications | ◆Widely used as frequency doublers for wavelength > 1 mm | ||
| ◆Widely used as optical parametric oscillators (OPOs) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices. | |||
| ◆Used in laser frequency doublers, and quasi-phase-matched doublers | |||
| ◆Used in waveguide substrate and surface acoustic wave (SAW) wafers | |||
| Features | ◇Large Electro-Optic (E-O) and Acousto-Optic (A-O) coefficients. | ||
| ◇High homogeneity | |||
| ◇Good mechanical and chemical stability | |||
| ◇Absorption loss < 0,1 %/cm @ 1064 nm | |||
| Main Specification | Material | LiNbO3 | |
| Orientation accuracy of cut angle | <30 arc min | ||
| Coating | AR coating: dual wave band AR coating at 1064/532 nm on both surfaces, with R < 0.2% at 1064 nm and R < 0.5% at 532 nm per surface. | ||
| Angle tolerance | < ± 0.5° | ||
| Dimension tolerance | (W ± 0.1 mm) × (H ± 0.1 mm) × (L ± 0.2mm) | ||
| Flatness | <λ/8 @ 632.8 nm | ||
| Surface quality | 20/10 to MIL-PRF-13830B | ||
| Parallelism | < 20 arc sec | ||
| Transmitting Wavefront distortion | <λ/4 @ 633 nm | ||
| Clear aperture | > 90% central area | ||
| Physical Properties | Crystal Structure | Trigonal, Space group R3C, Point group 3m | |
| Lattice parameters | a = 0.515, c = 13.863, Z = 6 | ||
| Melting Point | 1255 +/-5°C | ||
| Curie Point or Temperature | 1140 +/-5°C | ||
| Optical Homogeneity | ~ 5 x 10-5 /cm | ||
| Hardness | 5 | ||
| Density | 4.64 g/cm3 | ||
| Absorption Coefficient | ~ 0.1%/cm @ 1064 nm | ||
| Resistivity | 2x10-6Ω/cm@200°C | ||
| Relative Dielectric Constant | a1 = 11 x 10-6 °C-1 | ||
| a2 = 9 x 10-6 °C-1 | |||
| a3 = 0.6 x 10-6 °C-1 | |||
| Dielectric constant | εS11/ε0 =43 εT11/ε0 =78 | ||
| εS11/ε0 =28 εT33/ε0 =32 | |||
| Piezoelectric Strain Constant | D22=2.04(x10-11C/N) | ||
| D33=19.22(x10-11C/N) | |||
| Thermal Expansion Coefficients | // a, 2.0x10-6/K | ||
| (in the range of 25°C- 900°C) | // c, 2.2x10-6/K | ||
| Thermal Conductivity | 38 W /m /K @ 25°C | ||
| Elastic Stiffness Coefficients | CE11= 2.33(×1011N/m2 ) | ||
| CE33= 2.77(×1011N/m2 ) | |||
| Linear Optical Properties | Transparency Range | 420 - 5200 nm | |
| Refractive Indices | ne = 2.146, no = 2.220 @ 1300 nm | ||
| ne = 2.156, no = 2.322 @ 1064 nm | |||
| ne = 2.203, no = 2.286 @ 632.8 nm | |||
| at 1064nm | |||
| Sellmeier Equations | no2(l) = 4.9048+0.11768/(l2 - 0.04750) - 0.027169 l2 | ||
| ne2(l) = 4.5820+0.099169/(l2- 0.04443) - 0.021950 l2 | |||
| ( l in mm) | |||
| Nonlinear Optical Properties | NLO coefficients | d33 = 34.4 pm/V | |
| d31 = d15 = 5.95 pm/V | |||
| d22 = 3.07 pm/V | |||
| Effective nonlinear optical coefficients | deff=5.7pm/V or~14.6×d36(KDP) for frequency doubling 1300 nm; | ||
| deff=5.3pm/V or~13.6×d36(KDP) for OPO pumped at 1300nm; | |||
| deff=17.6pm/V or~45×d36(KDP) for quasi-phase-matched structure; | |||
| Electro-Optic Coefficients | r T33 = 32 pm/V, rS33 = 31 pm/V, | ||
| rT31 =10 pm/V, rS31=8.6 pm/V, | |||
| rT22 = 6.8 pm/V, rS22= 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 | >250 MW/cm2 for 10 ns pulses @ 1064 nm | ||
| Notice | ★Engineers can select and design the best solution for you, if the main parameters of your laser are provided, such as energy per pulse, pulse width and repetition rate for a pulsed laser, power for a cw laser, laser beam diameter, mode condition, divergence, wavelength tuning range, etc. | ||
