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KTP

KTP crystalPotassium Titanium Oxide Phosphate (KTiOPO4 ), or KTP, is an efficient nonlinear optical crystal in the visible to infrared spectral region with relatively low cost. It has large nonlinear coefficient. The effective nonlinear optical coefficient of KTP deff at 1064nm is more than 1.5 times that of BBO. It's damage threshold is near 1 GW/cm2 for 1 Hz 10 ns pulses at 1064nm. However, it is now limited to moderate to low power applications due to it's gray-tracking problem.

 

KTP Structural and Physical Properties

Crystal structure

Orthorhombic, space group Pna21,point group mm2

Cell parameters

a=6.404Å, b=10.616Å, c=12.814Å, Z=8

Melting point

1172ã¡C incongruent

Curie point

936°C

Mohs hardness

»5

Density

3.01 g/cm3

Color

colorless

Hygroscopic susceptibility

no

Specific heat

0.1643 cal/g°C

Thermal conductivity

0.13 W/cm/°K

Electrical conductivity

3.5x10-8 s/cm (c-axis, 22°C, 1KHz)

 

KTP Specifications:

Transmitting wavefront distortion

 less than l/4 @ 633 nm

Dimension tolerance

(W ± 0.1 mm) x (H ± 0.1 mm) x (L + 0.2 mm/-0.1 mm)

Clear aperture

 > 90% central area

Flatness

 l/8 @ 633 nm

Scratch/Dig code

10/5 to MIL-O-13830A

Parallelism

better than 20 arc seconds

Perpendicularity

5 arc minutes

Angle tolerance

Dθ < ±0.5°, Dф < ± 0.5°

Chip

≤0.1 mm

 
 
 

Standard Products

Dimension

Application

Coating

Type

2x2x3mm

SHG@1064nm

AR/HR coating

II

2x2x5mm

SHG@1064nm

AR/AR coating

II

3x3x5mm

SHG@1064nm

DBAR-coating

II

3x3x10mm

SHG@1064nm

DBAR-coating

II

7x7x5mm

SHG@1064nm

DBAR-coating

II

8x8x5mm

SHG@1064nm

DBAR-coating

II

9x9x7mm

SHG@1064nm

DBAR-coating

II

7x7x20mm

OPO for 1064nm&1570nm

AR coating

II

 

 
 
 
 
Addr: No.888 Jinhu Road High-tech Zone,Changchun 130103, P.R.China
Email: cnioptical@cnilaser.com   International Tel: +86-431-87034313   Fax:+86-431-87033597   
 
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