AdvatechUK

Optical Properties

Units

Value

Transmission/Transparency Range

nm

350 - 3500

 Optical Homogeneity (δn)

cm¹

 

Refractive Index (n)                                             @1064nm

@  532nm           



nx=1.7377, ny=1.7453 nz= 1.8297

nx=1.7780, ny=1.7886, nz= 1.8887

Non-linear Coefficients

pm/V

d31=1.95 pm/v, d32=3.9 pm/v,

 d33=15.3 pm/v,d24=3.9 pm/v,

 d15=1.95 pm/v

 Effective Nonlinear Expressions:      


deff(II)= (d24-d15)sin2φsin2θ-(d15sin2φ+ d24cos2φ)sinθ  = d32.cosφ (XY plane)


 Electro-optic Coefficients:

pm/V


 Absorption Coefficient @1064nm

cm¹

0.001

Physical / Thermal Properties

Units

Value

 Chemical Formula


KTiOPO

 Crystal Symmetry/Structure


Orthorhombic

 Space Group


Pna21

 Point Group


mm2

Melting Point

ºC

1172

 Thermal Expansion Coeff. @20ºC

 10‾⁶/ºC

┴19.0

║   44

Thermal Conductivity Coeff. @20ºC

W/m/ºK

2

 Specific Heat Capacity

 cal./g K

0.1643

 Density  

g/cm³

3.01

 Mohs Hardness


5

 Optical Damage Threshold @1064nm,1ns

GW/cm²

c.19

 KTP / S-KTP Crystal - Sellmeier Equations


nx2=3.0065+0.03901/(λ2-0.04251)-0.01327λ2

 ny2=3.0333+0.04154/(λ2-0.04547)-0.01408λ2

 nz2=3.0065+0.05694/(λ2-0.05658)-0.01682λ2






  








 KTP / S-KTP Crystal - Availability


                      

  








 KTP / S-KTP Crystal - Common Configurations


Application/Operation

Input

nm

Output

nm

Theta

Phi

SHG (Type II) @1064nm (Nd:YAG)

1064

532

90

23.5

OPO (X-Cut) @1064nm (Nd:YAG)

1064

1570/

3300

90

0




































Potassium Titanyl Phosphate (KTiOPO), KTP, is to one of the most commonly used nonlinear optical

crystals with excellent nonlinear and electro-optic properties. It is often referred to as S-KTP, Super  

Potassium Titanyl Phosphate. KTP (S-KTP) is is the most efficient frequency doubling crystal for Nd:YAG and

Nd:YVO4 and the best nonlinear crystal for  1064nm pumped OPOs.


KTP / S-KTP crystal strengths include:



KTP / S-KTP crystal applications include:






 KTP / S-KTP Crystal Properties


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 KTP Crystals / S-KTP Crystal


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