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| Maximum Length | 30mm(Aperture-15x15mm) | Dimensional Tolerance | (W+/-0.1mm)x(H+/-0.1mm)x(L+0.2/-0.1mm) |
| Wavefront Distortion | <Lambda/8@633nm | Chamfer | <0.15mm x 45° |
| Perpendicularity | < 5 arc min | Parallelism | <15 arc sec |
| Flatness | <Lambda/10 @ 633nm | Surface Quality | 10/5 |
| AR Coating | From visible to 3.3μm | ||
Basic Properties:
| Crystal Structure | Orthorhombic, point group mm2 | Lattice Parameter | a=13.125Å, b=6.5716Å, c=10.786Å |
| Melting Point | 1130℃ | Mohs Hardness | Near 5 |
| Density | 3.454g/cm3 | Thermal Conductivity | K1:1.8W/m/K; K2: 1.9W/m/K; K3: 2.1W/m/K |
Optical and Nonlinear Properties:
| Transparency Range | 350-5300nm | ||||||
| Absorption Coefficients | @ 1064nm <0.05 %/cm @ 1533nm <0.05 %/cm @ 3475nm <5%/cm |
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| NLO susceptibilities(pm/V) | d31 = 2.76, d32 = 4.74, d33 = 18.5 , d15 = 2.3, d15 = 3.2 | ||||||
| Index | A | B | C | D | |||
| Sellmeier Equation Ni2=Ai+Biλ2/(λ2-Ci2)-Diλ2(λ in μm) |
Nx | 1.90713 | 1.23522 | 0.19692 | 0.01025 | ||
| Ny | 2.15912 | 1.00099 | 0.21844 | 0.01096 | |||
| Nz | 2.14768 | 1.29559 | 0.22719 | 0.01436 | |||
| Electro-optical constants(pm/V) (low frequency) |
γ33=37.5;γ23=15.4;γ13=11.5 | ||||||
| SHG Phase Matchable Range | 1083-3789nm | ||||||
Potassium Titanyle Arsenate(KTiOAsO4), or KTA crystal, is an excellent nonlinear optical crystal for Optical Parametric Oscillation (OPO) application. It has better non-linear optical and electro-optical coefficients, significantly reduced absorption in the 2.0-5.0 µm region, broad angular and temperature bandwidth, low dielectric constants. And its low ionic conductivities result in higher damage threshold compared with KTP.
Crystal length from 0.1-30mm, size up to 15x15x30mm
AR coating from visible to 3300nm
Application Notes:
