KTP

Specifications

Dimension tolerance: 0.1mm
Flatness: l/8 @633nm
Surface quality: Scratch/Dig /
Parallelism: better than 10 arc sec.
Perpendicularity: better than 5 arc min
Angle tolerance: q < 0.5,f < 0.5
AR coating: dual band AR coating at 1064/532 nm for both faces
residual reflectivity: R1064<0.1% ,R532<0.2%
Clear aperture: >90% central area
Transmitting wavefront distortion: less than l/4 @ 633nm
Homogenity:ġ10-6/cm
Quality Warranty Period: one year under proper use

Standard Products

 

Part No.

Specification

price(USD)

KTP001

KTP 3X3X5mm =90=23.5S1AR@1064  S2HR@1064 AR@532 

$60

KTP002

KTP 7X7X3mm =90=23.5AR/AR@1064/532 

$120

KTP003

KTP 7X7X5mm=90=23.5AR/AR@1064/532 

$170

KTP004

KTP 8X8X7mm=90=23.5AR/AR@1064/532 

$270

KTP005

KTP 8X8X8mm =90=23.5AR/AR@1064/532 

$335

KTP006

KTP 10x10x5mm=90=23.5AR/AR@1064/532 

$335

KTP007

KTP 10X10X6mm=90=23.5AR/AR@1064/532 

$370

KTP008

KTP 5X5X20mm =90=0AR/AR@1064/1570

$420

KTP009

KTP 12X12X4mm=90=23.5AR/AR@1064/532 

$470

1. Structural and Physical Properties
Crystal Structure Orthorhombic, point group mm2
Cell Parameters a = 6.404Å, b = 10.616Å, c = 12.814Å Z = 8
Melting Point 1172 oC Incongruent
Curie point 936 oC
Mohs Hardness » 5.0
Density 3.01g/cm3
Linear Absorption Coefficients a <0.001 cm-1 @ l =1064 nm or 532 nm
Hygroscopic Susceptibility no
Relative Dielectric Constant eeff=13
Specific heat 0.1643 cal/g.oC
Electrical conductivity 3.5x10-8 s/cm (c-axis, 22oC, 1KHz)
Thermal Conductivity 13W/m/K

 

2. Linear Optical Properties
Transparency Range:
350 - 4500 nm, See Transparency Curve
Refractive Indices:
Wavelength nx  ny  nz
1064 nm 1.7377 1.7453 1.8297
532 nm  1.7780 1.7886 1.8887
Therm-Optic Coefficients:
dnx/dT=1.1x10-5/oC
dny/dT=1.3x10-5/oC
dnz/dT=1.6x10-5/oC
Sellmeier Equations:
n2x=3.0065+0.03901/(l2-0.04251)-0.01327l2
n2y=3.0333+0.04154/(l2-0.04547)-0.01408l2
n2z=3.3134+0.05694/(l2-0.05658)-0.01682l2

 

3. NonLinear Optical Properties

Phase-Matchable Output Range:

492- 1700 nm

NLO Coefficients:

d31=2.54pm/V, d32=4.35pm/V, d33=16.9pm/V

d24=3.64pm/V, d15=1.91pm/V at 1064 nm

deff(II)» (d24 - d15)sin2fsin2q - (d15sin2f + d24cos2f)sinq

Electro-Optic Coefficients:

Low Frequency (pm/V)

High Frequency(pm/V)

g13

9.5

8.8

g23

15.7

13.8

g33

36.3

35

g51

7.3

6.99

g42

9.3

8.8

 

Applications for SHG and SFG of Nd:lasers
KTP is the most commonly used material for frequency doubling of Nd:YAG lasers and other Nd-doped lasers, particularly at the low or medium power density. 

PM angle

q=90o, f=23.5o,where q & f are polar angles referring to Z and X.

Effective SHG coefficient

deff » 8.3xd36(KDP)

Angular acceptance

20 mrad-cm

Temperature acceptance

25oC-cm

Spectral acceptance

5.6 Å-cm.

Walk-off angle

4.5mrad (0.26o)

Optical damage threshold

> 450MW/cm2, (@ 1.06mm, 10ns, 10Hz)

 

 

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