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23.5 Deg KTP Crystal 4500nm Non Linear Optical Crystals For Laboratory System

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23.5 Deg KTP Crystal 4500nm Non Linear Optical Crystals For Laboratory System

Country/Region	china
City & Province	wuhan
Categories	Laser Equipment Parts

Product Details

Nonlinear Crystal, KTP

Overview:

KTP (KTiOPO4) is an excellent nonlinear optical crystal in many optical systems like laboratory system, medical system, industrial system, etc. It is the most commonly used material for frequency doubling of Nd:YAG laser and other Nd-doped lasers, particularly at the low or medium power density. KTP’s properties also make it superior for electro-optic modulation, optical parametric generation.

General Specifications Of KTP:

Dimension Tolerance	W(+/-0.1)×H(+/-0.1)×L(+0.2/-0.1)mm
Angle Tolerance	Δθ< 0.5°, Δφ< 0.5°
Surface Quality	20/10 Scratch/Dig
Clear Aperture	>90%
Surface Flatness	<λ/8@633nm
Wavefront Distortion	<λ/8@633nm
Parallelism	<20 arc seconds
Perpendicularity	<10 arc minutes
Residual Reflectivity	<0.2% at 1064nm and <0.5% at 532nm
Coating	AR/AR@1064&532nm: S1&S2 AR@1064&532nm, R<0.25%@1064nm, R<0.5%@532nm HR/AR@1064&532nm: S1 HR@1064nm&HT@532nm, R>99.8%@1064nm, R<5%@532nm S2 AR@1064&532nm, R<0.25%@1064nm, R<0.5%@532nm
Damage Threshold	500MW/cm² @1064nm 10ns 10Hz
Quality Warranty Period	One year under proper use

Standard Products of KTP:

Dimension(mm)	Theta(Deg)	Phi(Deg)	Coating	Application
335	90	23.5	AR/AR@1064&532nm	SHG@1064,TypeⅡ
335	90	23.5	HR/AR@1064&532nm	SHG@1064,Type
3310	90	23.5	AR/AR@1064&532nm	SHG@1064,TypeⅡ
3310	90	23.5	HR/AR@1064&532nm	SHG@1064,TypeⅡ
5510	90	23.5	AR/AR@1064&532nm	SHG@1064,TypeⅡ
775	90	23.5	AR/AR@1064&532nm	SHG@1064,TypeⅡ
7720	90	0	AR/AR@1573&1064nm	OPO@1573&1064nm

Physical and Optical Properties of KTP:

Crystal Structure	Orthorhombic, space group Pna21,point group mm²
Lattice Parameters	a=6.404Å, b=10.616Å, c=12.814Å, Z=8
Density	3.01 g/cm3
Mohs Hardness	5
Melting Point	around 1172℃
Absorption Coefficient	< 0.1%/cm@1.064μm, < 1%/cm@0.532μm
Thermal Conductivity	13W/m/K
Hygroscopic Susceptibility	no
Transparency Range	350nm-4500nm
SHG Phase Matchable Range	497～1800nm (Type II)
Nonlinear Coefficient	d31=6.5pm/v
	d32=5pm/v
	d33=13.7pm/v
	d24=7.6pm/v
	d15=6.1pm/v
Therm-optic Coefficients (/℃)	dnx/dT=1.1X10-5
	dny/dT=1.3X10-5
	dnz/dT=1.6X10-5
Sellmeier Equations (λin um)	Nx²=3.0065+0.03901/(λ²-0.04251)-0.01327λ²
	Ny²=3.0333+0.04154/( λ²-0.04547)-0.01408λ²
	Nz²=3.3134+0.05694/(λ²-0.05658)-0.01682λ²