Potassium Titanyle Arsenate: KTA Crystals

For nanosecond OPO@1064 nm pump to generate in 1.5-4.5 μm range

Code	θ	φ	Coating	W, mm	H, mm	L, mm	Price	Delivery	Add to cart
KTA-503	45	0	AR@1064+(1500-4500) nm	5	5	20	2739 $	Request

For picosecond OPG/A@1064 nm pump to generate in 1.5-4.5 μm range

Code	θ	φ	Coating	W, mm	H, mm	L, mm	Price	Delivery	Add to cart
KTA-504	45	0	AR@1064+(1500-4500) nm	5	5	10	1166 $	Request

For DFG mixing signal and idler at 1.2-2.4 microns to generate wavelengths from 2.6 μm up to 5 μm

Code	θ	φ	Coating	W, mm	H, mm	L, mm	Price	Delivery	Add to cart
KTA-601H	47	0	AR/AR@1.2-2.4/2.6-5.0 μm	6	6	1	743 $	Request

Crystal is for DFG application, whereas signal and idler waves are obtained from BBO crystal using OPG/A pumped by femtosecond Ti:Sapphire laser.

For OPO@1030 nm pump to generate wavelengths from 1.5 up to 5 microns

Code	θ	φ	Coating	W, mm	H, mm	L, mm	Price	Delivery	Add to cart
KTA-602H	46	0	AR@1030+(1700-5000) nm	6	6	3	649 $	Request

Crystal is dedicated for femtosecond laser pump with pulse duration ~100-300 fsec.

SPECIFICATIONS

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

PHYSICAL PROPERTIES

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

NONLINEAR & OPTICAL PROPERTIES

Transparency	350–5300 nm
Wavelength dispersion of refractive indices	nx2=1.90713+1.23522λ2/ (λ2-0.1969222)-0.01025 λ2 ny2=2.15912+1.00099λ2/ (λ2-0.2184422)-0.01096 λ2 nz2=2.14768+1.29559λ2/ (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

EKSMA Optics KTA Crystals
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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 and temperature bandwidth, low dielectric constants.

Primary applications of KTA crystals:

OPO for mid IR generation – up to 4 µm;
Sum and Difference Frequency Generation in mid IR range;
Electro-optical modulation and Q-switching;

EKSMA OPTICS offers:

Standard KTA crystals ex-stock and crystals with size up to 15x15x30 mm under request;
AR and BBAR coatings for VIS-IR and mid IR ranges;
Standard and customized mounts and housings; Technical consulting.

Potassium Titanyle Arsenate - KTA Crystals

Potassium Titanyle Arsenate - KTA Crystals

Potassium Titanyle Arsenate - KTA Crystals

Potassium Titanyle Arsenate - KTA Crystals

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