KTP
Potassium titanyl phosphate (KTiOPO4, KTP) is an excellent frequency-doubling crystal with a large nonlinear optical coefficient, large acceptance angle and small walk-off angle, wide temperature and spectral bandwidth, high electro-optic coefficient and low dielectric constant, large figure of merit, no deliquescence, and stable chemical and mechanical properties. Crystals up to 20×20×40 mm^3 and up to 60 mm in length can be provided.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Crystal Structure | Orthorhombic crystal system; space group Pna21, point group mm2 |
| Unit Cell Parameters | a=6.404 Å，b=10.616 Å，c=12.814 Å，Z=8 |
| Mohs Hardness | 5 Mohs |
| Thermal Conductivity | 13 W/m/K |
| Coefficient of Thermal Expansion | α_x=11×10^-6 /℃， α_y=9×10^-6 /℃， α_z=0.6×10^-6 /℃ |
| Transmission Range | 350-4500 nm |
| SHG Phase Matching Range | 497-1800 nm （Type Ⅱ） |
| Absorption Coefficient | ＜0.1%/cm @ 1064 nm，＜1%/cm @ 532 nm |
| 1064 nm Nd:YAG Laser Type II SHG Temperature Bandwidth | 24 ℃·cm |
| 1064 nm Nd:YAG Laser Type II SHG Acceptance Spectral Width | 0.56 nm·cm |
| 1064 nm Nd:YAG Laser Type II SHG Acceptance Angle | 14.2 mrad•cm（Φ）；55.3 mrad•cm（θ） |
| 1064 nm Nd:YAG Laser Type II SHG Walk-off Angle | 0.55° |
| NLO Coefficient | deff（Ⅱ）≈（d24- d15）sin2Φsin2θ-（d15sin2Φ+d24cos2Φ）sinθ |
| Nonzero Nonlinear Optical Coefficient | d_31=6.5 pm/V d_24=7.6 pm/V d_32=5 pm/V d_15=6.1 pm/V d_33=13.7 pm/V |
| Sellmeier Equation (Pure YVO4, λ in μm) | n_x^2 = 3.0065 + 0.03901 / (λ^2 - 0.04251) - 0.01327 λ^2 n_y^2 = 3.0333 + 0.04154 / (λ^2 - 0.04547) - 0.01408 λ^2 n_z^2 = 3.3134 + 0.05694 / (λ^2 - 0.05658) - 0.01682 λ^2 |
| Effective Clear Aperture | 90% central area |
| Internal Quality | 50 mW green light detection, no visible scattering path or center |
| Flatness | ≦λ/8 @ 633 nm |
| Transmitted Wavefront Distortion | ≦λ/8 @ 633 nm |
| Parallelism | 20″ |
| Warranty Period | One year (normal use) |
Applications
Datasheet
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Supplier Information
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