| Dimension Tolerance | ±0.1mm |
| Angle Tolerance | Δθ< 0.5°, Δφ< 0.5° |
| Surface Quality | 10/5 Scratch/Dig |
| Clear Aperture | >95% |
| Surface Flatness | <λ/8@633nm |
| Wavefront Distortion | <λ/4@633nm |
| Parallelism | <20 arc seconds |
| Perpendicularity | <15 arc minutes |
| Residual Reflectivity | <0.2% at 1064nm and <0.5% at 532nm |
| Coating | AR/AR@1064&532nm: S1&S2 AR@1064&532nm, R<0.25%@1064nm, R<0.5%@532nm HR/AR@1064&532nm:S1 HR@1064nm&HT@532nm, R>99.8%@1064nm, R<5%@532nm |
| Quality Warranty Period | One year under proper use |
Physical and Optical Properties:
Crystal Structure | Orthorhombic, point group mm2 | ||
Cell Parameters | a = 6.404A, b = 10.616A c = 12.814A, Z = 8 | ||
Melting Point | 1172 oC | ||
Curie Point | 936 oC | ||
Mohs Hardness | 5.0 | ||
Density | 3.01g/cm3 | ||
Linear Absorption Coefficients | a<0.001cm-1 @1064nm or 532nm | ||
Hygroscopic Susceptibility | no | ||
Relative Dielectric Constant | eeff=13 | ||
Specific Heat | 0.1643cal/g.oC | ||
Electrical Conductivity | 3.5x10-8 s/cm (c-axis, 22oC, 1KHz) | ||
Thermal Conductivity | 13W/m/K | ||
| Transmitting Range | 350nm~4500nm | ||
| Absorption Coefficients | a < 1%/cm @1064nm and 532nm | ||
| Phase Matchable Range | 0.984-3.4μm | ||
| Therm-Optic Coefficients | dnx/dT=1.1x10-5/℃ | ||
| Nonlinear Optical Coefficients | d31=2.54pm/V, d31=4.35pm/V, d31=16.9pm/V d24=3.64pm/V, d15=1.91pm/V at 1.064 µm deff(II)≈ (d24 - d15)sin2φsin2θ - (d15sin2φ + d24cos2φ)sinθ | ||
| Electro-Optic Coefficients | High Frequency(pm/V) | Low Frequency(pm/V) | |
r13 | 8.8 | 9.5 | |
r23 | 13.8 | 15.7 | |
r33 | 35.0 | 36.3 | |
r51 | 6.9 | 7.3 | |
r42 | 8.8 | 9.3 | |
| Sellmeier Equations(λ in um) | nx2=3.0065+0.03901/(λ2-0.04251)-0.01327λ2 ny2=3.0333+0.04154/(λ2-0.04547)-0.01408λ2 nz2=3.3134+0.05694/(λ2-0.05658)-0.01682λ2 | ||
| Optical Damage Threshold | > 450MW/cm2, (@ 1.06µm, 10ns, 10Hz) | ||
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