KTP-Nonlinear crystal-Beijing Honour Optics Co., Ltd-Honour Optics Co., Ltd

KTP

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

Table 1. Chemical and Structural properties

Crystal Structure	Orthorhombic, space group Pna21,point group mm2
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/cm3
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-(d15sin2φ + d24cos2φ)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)	nx2=3.0065+0.03901/(λ2-0.04251)-0.01327λ 2 ny2=3.0333+0.04154/(λ 2-0.04547)-0.01408λ2 nz2=3.3134+0.05694/(λ 2-0.05658)-0.01682λ2

Quality Warranty Period: one half year under proper use.