Potassium Titanyl Arsenate (KTiOAsO4), commonly known as KTA, is a nonlinear optical crystal that is highly valued for its applications in frequency conversion processes, particularly in regions where other popular nonlinear crystals like KTP (Potassium Titanyl Phosphate) are less effective. KTA is known for its strong non-linear optical properties, high damage threshold, and its ability to operate efficiently at near-infrared wavelengths.

Properties of KTA:

• High Nonlinear Optical Coefficients: KTA possesses high nonlinear coefficients, which make it highly effective for second harmonic generation (SHG), optical parametric oscillation (OPO), and other frequency conversion techniques.
• Wide Transparency Range: KTA has a broad transparency range, from about 350 nm to over 4500 nm, enabling its use across a wide spectrum of light, including the mid-infrared.
• High Damage Threshold: The crystal can withstand high-power laser beams, making it suitable for high-intensity applications without sustaining damage.
• Non-critical Phase Matching (NCPM) Capability: Like KTP, KTA allows for non-critical phase matching, which is advantageous for maintaining the efficiency of frequency conversion processes over a range of temperatures and wavelengths.

Applications of KTA:

• Mid-Infrared Applications: KTA is particularly effective in mid-infrared applications, including optical parametric oscillators (OPOs) that are used to generate tunable laser outputs in the 3-4 μm range, ideal for spectroscopy and medical diagnostics.
• Frequency Doubling of Nd-Doped Lasers: It is used to double the frequency of Nd:YAG and other Nd-doped lasers operating at 1064 nm to produce output at 532 nm, but it is particularly valued for its performance at longer wavelengths.
• Optical Parametric Amplifiers (OPAs) and OPOs: KTA’s high nonlinearity makes it suitable for OPAs and OPOs, providing high power and wide tunability, which are essential in advanced research and industrial applications.
• Remote Sensing and Environmental Monitoring: Due to its ability to efficiently generate infrared light, KTA is used in LIDAR (Light Detection and Ranging) and other remote sensing technologies for environmental monitoring and earth observation.

The growth and fabrication of KTA crystals involve precise control of the crystallographic properties to ensure optimal performance in nonlinear optical applications. Its ability to operate under a wide range of conditions and its robustness make KTA an important material in the field of photonics, particularly in applications where deep penetration into materials or biological tissues is required.

Shapeoptics is Able to Offer

• Rod diameter from 1mm～30mm
• Length from 1mm～30mm
• Coating upon your request

Standard Specifications

KTA Crystal Properties

KTA or Potassium Titanyl Arsenate (KTiOAsO4) is an excellent non- linear optical crystal for Optical Parametric Oscillation(OPO) application. It has better nonlinear optical and electro optical coefficients, significantly reduced absorption in the region of 2m to 5m, broad angular and temperature bandwidth, low dielectric constants.

Shapeoptics offers a comprehensive range of materials and advanced equipment for custom and OEM optical components, leveraging over 20 years of expertise in manufacturing lenses, prisms, windows, and more. We utilize high-quality materials like UV and IR grade fused silica, Germanium, and ZnSe, among others. Our state-of-the-art techniques and equipment minimize waste and optimize delivery times. Our in-house capabilities include standard and custom coatings across the UV-NIR spectrum, ensuring high quality and compliance with all industry standards. For precision and reliability in optics, contact Shapeoptics for your next project.