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KTP
Potassium Titanyl Phosphate (KTiOPO4 or KTP) is widely used in both commercial and military lasers including laboratory and medical system, range-finders, LiDAR, optical communication and industrial systems.
Classification:
Detailed introduction
Potassium Titanyl Phosphate(KTiOPO4 or KTP)is widely used in both commercial and military lasers including laboratory and medical system,range-finders,LiDAR,optical communication and industrial systems.
PRODUCT FEATURE
Large nonlinear optical coefficient
Wide angular bandwidth and small walk-off angle
Broad temperature and spectral bandwidth
High electro-optic coefficient and low dielectric constant
Large figure of merit
Nonhydroscopic,chemically and mechanically stable
Specifications | |
Dimension Tolerance | (W±0.1mm)×(H±0.1mm)×(L±0.2mm/0.1mm) |
Angle Tolerance | Δθ<±0.2°;Δφ<±0.2° |
Parallelism | <30" |
Perpendicularity | <10′ |
Clear Aperture | ≥Central 90% of the diameter |
Surface Quality (Scratch/Dig) | 20/10 (MIL-PRF-13830B) |
Flatness | <λ/8@633nm |
Transmitted Wavefront Distortion | <λ/8@633nm |
Anti-Reflection Coating | According to customer requirements |
Chemical and Structural Properties | |
Crystal Structure | Orthorhombic, Space group Pna21, Point group mm2 |
Lattice Parameter | a=12.81Å, b=6.404Å, c=10.616Å |
Melting Point | About 1172℃ |
Mohs Hardness | 5 |
Density | 3.01g/cm3 |
Thermal Conductivity | 13W/mK |
Thermal Expansion Coefficients | ax=11×10-6/℃, ay=9×10-6/0C, az=0.6×10-6/℃ |
Optical and Nonlinear Optical Properties | |
Transparency Range | 350~4500nm |
SHG Phase Matchable Range | 497~1800nm (Type II) |
Therm-optic Coefficient ( λ in μm) | dnx/dT=1.1×10-5 |
dny/dT=1.3×10-5 | |
dnz/dT=1.6×10-5 | |
Absorption Coefficients | <0.1%/cm at 1064nm <1%/cm at 532nm |
For Type II SHG of a Nd:YAG laser at 1064nm | Temperature Acceptance: 24℃·cm |
Spectral Acceptance: 0.56nm·cm | |
Angular Acceptance: 14.2mrad·cm (φ); 55.3mrad·cm(θ) | |
Walk-off Angle: 0.55° | |
NLO Coefficients | deff(II)≈(d24- d15)sin2φsin2θ;- (d15sin2φ+ d24cos2φ)sinθ |
Non-vanished NLO Susceptibilities | d31=6.5 pm/V d24=7.6 pm/V |
d32= 5pm/V d15=6.1 pm/V | |
d33=13.7 pm/V | |
Sellmeier Equations (λ in μm) | nx2=3.0065+0.03901/(l 2-0.04251)-0.01327λ2 |
ny2=3.0333+0.04154/(l 2-0.04547)-0.01408λ2 | |
nz2=3.3134+0.05694/(l 2-0.05658)-0.01682λ2 |
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