Nonlinear Crystal Ktp, Sale Ktp Crystal Products

Product Description

Potassium Titanyl Phosphate (KTiOPO₄,KTP) 

Product Description

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
 

Product Parameters

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

 
Advantage:

•Efficient frequency conversion(1064nm SHG conversion efficiency is about 80%)

•Large nonlinear optical coefficients(15 times that of KDP)

•Wide angular bandwidth and small walk-off angle

•Broad temperature and spectral bandwidth

•High thermal conductivity (2 times that of BNN crystal )

•Moisture free

•Minimum mismatch gradient

•Super-polished optical surface

•No decomposition below 900°C

•Mechanically stable 

•Low cost compare with BBO and LBO