Potassium Titanyle Arsenate - KTA Crystals
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Potassium Titanyle Arsenate - KTA Crystals SKU: KTA-602H

Potassium titanyle arsenate (KTiOAsO4), or KTA, is a nonlinear optical crystal for Optical Parametric Oscillation (OPO) application. It has good non-linear optical and electro-optical properties, e.g. significantly reduced absorption in band range of 2.0-5.0 µm, broad angular…

Variant specifications

Specification Value
θ 46
φ 0
Coating AR@1030+(1700-5000) nm
W, mm 6
H, mm 6
L, mm 3
Group For OPO@1030 nm pump to generate wavelengths from 1.5 up to 5 microns
Note Crystal is dedicated for femtosecond laser pump with pulse duration ~100-300 fsec.

Shared product specifications

These specifications apply across the Potassium Titanyle Arsenate - KTA Crystals product family.

Crystal structure orthorhombic
Point group mm2
Space group Pna21
Lattice constants a = 13,125, b = 6,5716, c = 10,786 Å
Density 3,45 g / cm³
Melting point 1130 °C
Mohs hardness 5
Thermal conductivity k₁=1.8, k₂=1.9, k₃=2.1 W / m*K;
Not hygroscopic
Flatness λ / 8@633 nm
Parallelism > 20 arc sec
Surface quality 10 / 5 Scratch / Dig (MIL-PRF-13830B)
Perpendicularity > 15 arc min
Angle tolerance < ± 0.2°
Aperture tolerance ± 0.1 mm
Clear aperture >90% central area
Transmitting wavefront distortion less than λ / 8@633 nm
Transparency 350–5300 nm
Wavelength dispersion of refractive indices nx2=1.90713+1.23522*λ2 / (λ2-0.1969222)-0.01025* λ2 ny2=2.15912+1.00099*λ2 / (λ2-0.2184422)-0.01096* λ2 nz2=2.14768+1.29559*λ2 / (λ2-0.2271922)-0.01436* λ2
Electro optical constants r33=37.5 pm / V r23=15.4 pm / V r13=11.5 pm / V
Effective nonlinearity
x-y plane deoe = doee = d15sin2φ + d24cos2φ
x-z plane doeo = deoo = d24sinθ d31=2.3 pm / V, d32=3.66 pm / V, d33=15.5 pm / V, d24=3.64 pm / V, d15=2.3 pm / V
Damage threshold >500 MW / cm2 for pulses λ=1064 nm, τ=10ns, 10Hzm TEM00

Product brochures

Shared documentation for the complete product family.

PDF
EKSMA_Optics_KTA_Crystal.pdf PDF · 62.2 KB