Manufacturer of Caf2 - KTA Crystal – WISOPTIC

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Manufacturer of Caf2 - KTA Crystal – WISOPTIC Detail:

KTA (Potassium Titanyle Arsenate, KTiOAsO₄ ) is a nonlinear optical crystal similar to KTP in which atom P is replaced by As. 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.

Compared with KTP, the main advantages of KTA include: higher second-order nonlinear coefficient, longer IR cut-off wavelength, and less absorption at 3.5 µm. KTA also has lower ionic conductivity than that of KTP, which results in a higher laser induced damage threshold.

KTA is very popularly used for Optical Parametric Oscillation (OPO) application which gives high energy conversion efficiency (above 50%) of tunable laser radiation in solid lasers.

Contact us for the best solution for your application of KTA crystals.

WISOPTIC Advantages - KTA

• High homogeneity, excellent internal quality

• Top quality of surface polishing

• Large block for various size (e.g. 10x10x30mm³, 5x5x35mm³)

• Large nonlinear coefficient, high conversion efficiency

• Broad transparency range, large temperature matching width

• AR coatings for wave range from visual light to 3300 nm

• Very competitive price, quick delivery

WISOPTIC Standard Specifications^* - KTA

Dimension Tolerance	± 0.1 mm
Cutting Angle Tolerance	< ± 0.25°
Flatness	< λ/8 @ 632.8 nm
Surface Quality	< 10/5 [S/D]
Parallelism	< 20”
Perpendicularity	≤ 5′
Chamfer	≤ 0.2mm @ 45°
Transmitted Wavefront Distortion	< λ/8 @ 632.8 nm
Clear Aperture	> 90% central area
Coating	AR@1064nm(R<0.2%) & 1533nm(R<0.5%) & 3475nm(R<9%) or upon request
Laser Damage Threshold	500 MW/cm² for 1064nm, 10ns, 10Hz (AR-coated)
* Products with special requirement upon request.

kta
KTA-2
KTA-1

DOWNLOAD Technical Data – KTA

Main Features - KTA

• High nonlinear coefficient, high electro-optical coefficient

• Wide acceptance angle, small wall-off angle

• Broad transparency range, large temperature matching width

• Small dielectric constant, low ionic conductivity

• Lower absorption in 3-4 µm spectrum range than that of KTP

• High laser damage threshold

Primary Applications – KTA

• OPO for mid IR generation – up to 4 µm

• Sum and Difference Frequency Generation in mid IR range

• Electro-optical modulation and Q-switching

• Frequency doubling (SHG @1083nm-3789nm).

Physical Properties – KTA

Chemical formula	KTiOAsO₄
Crystal structure	Orthorhombic
Point group	mm2
Space group	Pna2₁
Lattice constants	a=13.103 Å, b=6.558 Å, c=10.746 Å
Density	3.454 g/cm³
Melting point	1130 °C
Curie temperature	881 °C
Mohs hardness	5
Thermal conductivity	k₁=1.8 W/(m·K), k₂=1.9 W/(m·K), k₃=2.1 W/(m·K)
Hygroscopicity	non-hygroscopic

Optical Properties- KTA

Transparency region (at “0” transmittance level)	350-5300 nm
Refractive indices (@632.8 nm)	n_x	n_y	n_z
Refractive indices (@632.8 nm)	1.8083	1.8142	1.9048
Linear absorption coefficients (@532 nm)	α = 0.005/cm
NLO coefficients (@1064 nm)	d₁₅=2.3 pm/V, d₂₄=3.64 pm/V, d₃₁=2.5 pm/V, d₃₂=4.2 pm/V, d₃₃=16.2 pm/V
Electro-optic coefficients (@632.8nm; T=293K, low frequency)	r₁₃	r₂₃	r₃₃
	11.5 ± 1.2 pm/V	15.4 ± 1.5 pm/V	37.5 ± 3.8 pm/V

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To be the stage of realizing dreams of our employees! To build a happier, more united and more professional team! To reach a mutual benefit of our customers, suppliers, the society and ourselves for Manufacturer of Caf2 - KTA Crystal – WISOPTIC, The product will supply to all over the world, such as: Sudan, Cairo, European, With the development and enlargement of mass clients abroad, now we've set up cooperative relationships with many major brands. We've our own factory and also have many reliable and well-cooperated factories in the field. Adhering to the "quality first, customer first, We are provideing high-quality, low-cost items and first-class service to customers. We sincerely hope to establish business relationship with customers from all over the world on the basis of quality, mutually benefit. We welcome OEM projects and designs.

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