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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:


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 StructureOrthorhombic, Space group Pna21, Point group mm2
Lattice Parametera=12.81Å, b=6.404Å, c=10.616Å
Melting PointAbout 1172℃
Mohs Hardness5
Density3.01g/cm3
Thermal Conductivity13W/mK
Thermal Expansion Coefficientsax=11×10-6/℃, ay=9×10-6/0C, az=0.6×10-6/℃

 

Optical and Nonlinear Optical Properties
Transparency Range350~4500nm
SHG Phase Matchable Range497~1800nm  (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 1064nmTemperature Acceptance: 24℃·cm
Spectral Acceptance: 0.56nm·cm
Angular Acceptance: 14.2mrad·cm (φ);  55.3mrad·cm(θ)
Walk-off Angle: 0.55°
NLO Coefficientsdeff(II)≈(d24- d15)sin2φsin2θ;- (d15sin2φ+ d24cos2φ)sinθ
Non-vanished NLO Susceptibilitiesd31=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

Keywords:

KTP

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