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Factory Outlets Co:Mlao - KTA Crystal – WISOPTIC

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Factory Outlets Co:Mlao - 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) nx ny nz
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

Product detail pictures:

Factory Outlets Co:Mlao - KTA Crystal – WISOPTIC detail pictures

Factory Outlets Co:Mlao - KTA Crystal – WISOPTIC detail pictures

Factory Outlets Co:Mlao - KTA Crystal – WISOPTIC detail pictures


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We're proud from the higher client fulfillment and wide acceptance due to our persistent pursuit of high quality both on product and service for Factory Outlets Co:Mlao - KTA Crystal – WISOPTIC, The product will supply to all over the world, such as: Naples, Thailand, Italy, We pursue the management tenet of "Quality is superior, Service is supreme, Reputation is first", and will sincerely create and share success with all clients. We welcome you to contact us for more information and look forward to working with you.
  • Superb technology, perfect after-sales service and efficient work efficiency, we think this is our best choice.
    5 Stars By Beulah from Mecca - 2017.10.23 10:29
    The supplier cooperation attitude is very good, encountered various problems, always willing to cooperate with us, to us as the real God.
    5 Stars By Dominic from Las Vegas - 2018.06.03 10:17

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