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KTA Crystal
Optical Crystals

KTA Crystal

Supplier
Crystrong
Category
Optical Crystals
Origin
China

KTA (potassium titanyl arsenate, source formula KTiOAsO4) is a high-performance nonlinear optical crystal independently developed/manufactured by 济南晶众光电科技有限公司. It offers excellent nonlinear-optical/electro-optic coefficients, broad angular/temperature bandwidths, low dielectric constant and a sharp decrease in absorption over 2.0–5.0μm. Lower ionic conductivity gives it a higher damage threshold than KTP. Designed specifically for optical parametric oscillation (OPO), its nonlinear/electro-optic properties support laser technology, spectroscopy, gas detection and military detection.

Specification Snapshot
Perpendicularity
< 5 arcmin
Surface Quality [S/D]
20/10, S/D
Flatness [632.8nm]
< λ/8 @ 632.8nm
Crystal Structure
Orthorhombic Crystal System, Point Group mm²
Transmission Range
350 – 5300 nm
Refractive Index nₓ
1.90713
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Overview

KTA (potassium titanyl arsenate, source formula KTiOAsO4) is a high-performance nonlinear optical crystal independently developed/manufactured by 济南晶众光电科技有限公司. It offers excellent nonlinear-optical/electro-optic coefficients, broad angular/temperature bandwidths, low dielectric constant and a sharp decrease in absorption over 2.0–5.0μm. Lower ionic conductivity gives it a higher damage threshold than KTP. Designed specifically for optical parametric oscillation (OPO), its nonlinear/electro-optic properties support laser technology, spectroscopy, gas detection and military detection.

Specifications

ParameterValue
Clear Aperture Dimension> 90%
Parallelism< 20 arcsec
Perpendicularity< 5 arcmin
Surface Quality [S/D]20/10, S/D
Flatness [632.8nm]< λ/8 @ 632.8nm
Electro-Optic Coefficient γ₁₃11.5 pm/V
Electro-Optic Coefficient γ₂₃15.4 pm/V
Electro-Optic Coefficient γ₃₃37.5 pm/V
Nonlinear Coefficient d₃₁2.76 pm/V
Nonlinear Coefficient d₃₂4.74 pm/V
Nonlinear Coefficient d₃₃18.5 pm/V
Nonlinear Coefficient d₁₅2.3 pm/V
Nonlinear Coefficient d₂₄3.2 pm/V
Chemical FormulaKTiOAsO₄
Crystal StructureOrthorhombic Crystal System, Point Group mm²
Lattice Parametersa=13.125Å, b=6.5716Å, c=10.786Å
Density3.454 g/cm³
Mohs Hardness~ 5
Transmission Range350 – 5300 nm
Refractive Index nₓ1.90713
Refractive Index nᵧ2.15912
Refractive Index n_z2.14768
Dimensional Tolerance [Technical Parameters in Main Text]±0.1 mm
Flatness [Technical Parameters in Main Text; 633nm]λ/8
Surface Finish [Technical Parameters in Main Text; MIL-PRF-13830B]10/5
Parallelism [Technical Parameters in Main Text]≤20 arcsec
Perpendicularity [Technical Parameters in Main Text]≤5 arcmin
Angular Tolerance [Technical Parameters in Main Text]≤±0.25
Optical Coating [Technical Parameters in Main Text; Optional; Optimized Transmission for Specific Band]AR and BBAR Coatings
Effective Clear Aperture [Technical Parameters in Main Text]90% of Central Aperture
Wavefront Distortion [Technical Parameters in Main Text; 633nm]λ/8

Applications

Nonlinear Frequency Conversion; Laser Gain Media; OPO; Sum-/Difference-Frequency Generation (SFG/DFG)

Key Features

Broad Transmission Range; Tunable Phase Matching; Low Dispersion; Good Thermochemical Stability

Datasheet

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Supplier Information

Cr
Crystrong
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Founded in 2012, Jingzhong Optoelectronics is a national high-tech enterprise focusing on the research, development and production of ultrafast solid-state lasers. With over ten years of deep technical accumulation in laser core module manufacturing, the company has built a full-chain independent innovation system from key materials to high-end lasers, providing stable, reliable, and customized 'ultrafast laser AI+' solutions for commercial space, controlled nuclear fusion, high-end medical, industrial micro-machining and other fields. Its products are exported to more than 30 countries and have long served top-tier enterprises and research institutions globally. Through industry-university-research collaboration with Shanghai Jiao Tong University and Shandong University, it has built a high-level R&D and production team with over 45% of employees holding master's or doctoral degrees, owns more than 60 independent intellectual property rights for core components, and has been recognized as a 'Specialized and Sophisticated' enterprise and 'Gazelle' enterprise. It has established innovation platforms such as Shandong Provincial Key Laboratory, and is committed to becoming a global leader in ultrafast lasers in the intelligent era.

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