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| Coad | 667891 | Phase-Matching Angle | 42.1° | |
| Type | KTA Crystal | Beam Divergence | 0° | |
| Dimension(mm) | 5.0 x 5.0 x 3.0 | Storage Conditions | Vacuum-sealed Storage | |
| Wavelength(nm) | 1030 + 1.35 - 4.4 | Parallelism | - | |
| Mounting Dimensions (mm) | No Mounting Bracket | Surface Quality | - | |
| Typical Applications | Mid-Infrared Optical Parametric Amplifier | Surface Flatness | - | |
| Coating Type | Dielectric Coating | Coating Specifications | AR@1030+1.35-4.4nm |
KTA (Potassium Titanyl Arsenate) crystal is a high-performance nonlinear optical crystal that holds an important position in the field of laser frequency conversion due to its excellent optical characteristics and stable physical and chemical properties. Prepared using an improved top-seeded solution growth method, KTA crystals feature outstanding optical homogeneity and stable nonlinear optical performance, making them widely used in mid-infrared laser generation, frequency conversion, and ultrafast optics.
The most notable advantage of KTA crystal lies in its well-balanced overall properties. With a relatively high nonlinear coefficient (d₃₃ = 16.9 pm/V), it enables efficient second harmonic generation (SHG) and optical parametric oscillation (OPO). Its wide transmission range (350–4500 nm), spanning from the visible to the mid-infrared, combined with a high laser damage threshold of up to 500 MW/cm², makes it an excellent choice for high-power laser systems. Particularly, KTA crystals exhibit extremely low absorption in the 3–5 μm mid-infrared region, making them among the best nonlinear crystals for mid-IR laser generation. In addition, they demonstrate excellent thermal stability and resistance to moisture, ensuring reliable operation under diverse environmental conditions.
Our KTA crystal products undergo strict quality control, including optical homogeneity testing, verification of phase-matching angle accuracy, and laser damage threshold evaluation. They are available in multiple cutting orientations (Type I and Type II phase matching), with sizes ranging from 5 × 5 × 1 mm to 15 × 15 × 15 mm, and can be customized with optical coatings (AR/HR).
Notes: For optimal performance, store and operate KTA crystals at 25 °C with 40%–60% relative humidity. If the crystal surface becomes contaminated, gently clean it with >99% alcohol and lint-free lens tissue. Avoid rough fabrics, water, or abrasive cleaners to prevent damage to the coating.
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