2020 New Style Er-Yb-Glass - KTA Crystal – WISOPTIC
2020 New Style Er-Yb-Glass - 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:
To be able to ideal satisfy client's requirements, all of our operations are strictly performed in line with our motto "High High-quality, Competitive Price tag, Fast Service" for 2020 New Style Er-Yb-Glass - KTA Crystal – WISOPTIC, The product will supply to all over the world, such as: Angola, Brasilia, Muscat, We have constructed strong and long co-operation relationship with an enormous quantity of companies within this business overseas. Immediate and specialist after-sale service supplied by our consultant group has happy our buyers. Detailed Info and parameters from the merchandise will probably be sent to you for any thorough acknowledge. Free samples may be delivered and company check out to our corporation. n Portugal for negotiation is constantly welcome. Hope to get inquiries type you and construct a long-term co-operation partnership.
By Betsy from Saudi Arabia - 2017.07.07 13:00
High production efficiency and good product quality, fast delivery and completed after-sale protection, a right choice, a best choice.
By Dinah from Singapore - 2018.02.12 14:52