Renewable Design for Nd:Yag Crystal - KTA Crystal – WISOPTIC
Renewable Design for Nd:Yag Crystal - 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. | |
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 |
r13 |
r23 |
r33 |
| 11.5 ± 1.2 pm/V | 15.4 ± 1.5 pm/V | 37.5 ± 3.8 pm/V | |
Product detail pictures:
Related Product Guide:
No matter new buyer or old purchaser, We believe in long expression and trusted relationship for Renewable Design for Nd:Yag Crystal - KTA Crystal – WISOPTIC, The product will supply to all over the world, such as: Oslo, Las Vegas, Azerbaijan, Honest to every customers are our requested! First-class serve, best quality, best price and fastest delivery date is our advantage! Give every customers good serve is our tenet! This makes our company get the favour of customers and support! Welcome all over the world customers send us enquiry and looking forward your good co-operation !Please your inquiry for more details or request for dealership in selected regions.
By John biddlestone from Brisbane - 2018.12.14 15:26
The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!
By Atalanta from Moldova - 2017.09.28 18:29
