Potassium Titany Phosphate (KTiOPO4, KTP)

• After-sales Service: After-Sale Service
• Warranty: 12
• Materials: Potassium Titanium Oxide Phosphate
• Shipping: FedEx,DHL,UPS...
• Lead Time: 1 Week
• Grade: Optical Grade
• Model NO.: FW-CRYSTAL
• Transport Package: Box
• Specification: customerised
• Trademark: FineWin
• Origin: Henan China

Product Description

Potassium Titanyl Phosphate (KTiOPO₄,KTP) 

Potassium Titanyl Phosphate (KTiOPO₃ or KTP) is widely used in both commercial lasers including laboratory and medical systems, range-finders, lidar, optical communication and industrial systems.
KTP is featured by 
•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
 

Table 1. Chemical and Structural properties

Crystal Structure	Orthorhombic, space group Pna21,point group mm^2
Lattice Parameter	a=6.404?, b=10.616?, c=12.814?, Z=8
Melting Point	About 1172°C
Mohs Hardness	5
Density	3.01 g/cm^3
Thermal Conductivity	13W/m/K
Thermal Expansion Coefficient	αx=11x10^-6/°C, αy=9x10^-6/°C, αz=0.6x10^-6/°C

 

Table 2. Optical and Nonlinear Optical Properties

Transparency Range	350~4500nm
SHG Phase Matchable Range	497~1800nm  (Type II)
Therm-optic Coefficients (/°C)	dnx/dT=1.1X10^-5 dny/dT=1.3X10^-5 dnz/dT=1.6X10^-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°C-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-(d15sin^2φ + d24cos^2φ)sinθ
Non-vanished NLO susceptibilities	d31=6.5 pm/V    d24=7.6 pm/V d32=5 pm/V        d15=6.1 pm/V d33=13.7 pm/V
Sellmeier  Equations (λ in μm)	nx^2=3.0065+0.03901/(λ^2-0.04251)-0.01327λ ^2 ny^2=3.0333+0.04154/(λ ^2-0.04547)-0.01408λ^2  nz^2=3.3134+0.05694/(λ ^2-0.05658)-0.01682λ^2

 

Electro-optic coefficients:	Low frequency(pm/V)	High frequency(pm/V)
R13	935	8.8
R23	15.7	13.8
R33	36.3	35.0
R51	7.3	6.9
R42	9.3	8.8
Dielectric constantq	Εeff =13

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