KTA Crystal

High homogeneity, excellent internal quality
Top quality of surface polishing
Large block for various size (e.g. 10x10x30mm, 5x5x35mm)
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


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Product Details

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.


KTA Crystal.jpg


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 Crystal.jpg


KTA Crystal.jpg


KTA Crystal.jpg


KTA Crystal.jpg


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