DFG Mixing Signal KTA Crystals

Potassium arsenate titanate (KTA) is a nonlinear optical crystal used in optical parametric oscillation (OPO) applications. It has good nonlinear optical and electro-optic coefficients, significantly reduced absorption in the 2.0–5.0 µm region, wide angle and temperature bandwidth, and low dielectric constant.

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Catalog Number

ACMA00027395

Product Name

DFG Mixing Signal KTA Crystals

Molecular Formula

KTiOAsO4

Melting Point

1130 °C

Width

6 mm

Height

6 mm

Length

1 mm

DimensionTolerance

W±0.1mm/H±0.1mm/L±0.2mm

Theta(Θ)

47°

Phi(Φ)

0

Coating

AR/AR@1.2-2.4/2.6-5.0 μm

Flatness

λ/8@633 nm

Parallelism

> 20 arc sec

Perpendicularity

> 15 arc min

Angle Tolerance

10/5 Scratch/Dig

ApertureTolerance

± 0.1 mm

Surface Quality

10/5 Scratch/Dig

ClearAperture

>90% central area

Crystal Structure

orthorhombic, mm2

Lattice Parameters

a = 13.125, b = 6.5716, c = 10.786 Å

Space Group

Pna21

Density

3.45 g/cm³

Transparency Region

350~5300 nm

Phase Matching Range

1083~3789nm

Thermal Acceptance

k1=1.8, k2=1.9, k3=2.1 W/m*K

NLO Coefficients

d31 = 2.76, d32 = 4.74, d33 = 18.5 , d15 = 2.3, d15 = 3.2

Thermal Conductivity

K1:1.8W/m/K; K2: 1.9W/m/K; K3: 2.1W/m/K

Damage Threshold

>500 MW/cm² for pulses λ=1064 nm, τ=10ns, 10Hzm TEM00

Electro Optic Coefficient

r33=37.5 pm/V r23=15.4 pm/V r13=11.5 pm/V

Moh'sHardness

5

MSDS

COA

Spec Sheet

Features And Benefits

The higher damage threshold of KTA crystals is due to its low ionic conductivity and lower absorption in the wavelength range of 3-4 μm than the former.

Application

Ideal for Optical Parametric Oscillation (OPO) with MWIR outputs up to 4 microns. Second Harmonic-SHG@1.083μm-3.789μm Sum and Difference Frequency Generation (SFG and DFG) Electro-optical Q-switching and modulation

• Catalog Number: ACMA00027395
• Product Name: DFG Mixing Signal KTA Crystals
• Molecular Formula: KTiOAsO4
• Melting Point: 1130 °C
• Width: 6 mm
• Height: 6 mm
• Length: 1 mm
• DimensionTolerance: W±0.1mm/H±0.1mm/L±0.2mm
• Theta(Θ): 47°
• Phi(Φ): 0
• Coating: AR/AR@1.2-2.4/2.6-5.0 μm
• Flatness: λ/8@633 nm
• Parallelism: > 20 arc sec
• Perpendicularity: > 15 arc min
• Angle Tolerance: 10/5 Scratch/Dig
• ApertureTolerance: ± 0.1 mm
• Surface Quality: 10/5 Scratch/Dig
• ClearAperture: >90% central area
• Crystal Structure: orthorhombic, mm2
• Lattice Parameters: a = 13.125, b = 6.5716, c = 10.786 Å
• Space Group: Pna21
• Density: 3.45 g/cm³
• Transparency Region: 350~5300 nm
• Phase Matching Range: 1083~3789nm
• Thermal Acceptance: k1=1.8, k2=1.9, k3=2.1 W/m*K
• NLO Coefficients: d31 = 2.76, d32 = 4.74, d33 = 18.5 , d15 = 2.3, d15 = 3.2
• Thermal Conductivity: K1:1.8W/m/K; K2: 1.9W/m/K; K3: 2.1W/m/K
• Damage Threshold: >500 MW/cm² for pulses λ=1064 nm, τ=10ns, 10Hzm TEM00
• Electro Optic Coefficient: r33=37.5 pm/V r23=15.4 pm/V r13=11.5 pm/V
• Moh'sHardness: 5