Optical properties
Transmission range
350 ‐ 5500
Refractive index @ 1064 nm
nx = 1,782

ny = 1,790

nz = 1,868

Average refractive index
1,8
NLO coefficients in pm/V
d15 = 2,3

d24 = 3,2

d31 = 2,8

d32 = 4,2

d33 = 16,2

Absorption loss in %/cm @532 nm and @1355 nm
<0,05
Absorption loss in %/cm @ 3475 nm
<5
Phase matching range in nm
1075 ‐ 1134
Wavelength in nm:
Pumpe ⇒ 1064

Signal ⇒ 1533

Idler ⇒ 3475

Damage threshold in MW/cm2 (1064 nm, 10 ns, 10 Hz)
600
Electro-optical constants (low frequency) in pm/V
r33 = 37,5

r23 = 15,4

r13 = 11,5

Physical properties
Chemical formula
KTiOAsO4
Density in g/cm3
3,454
Melting point in °C
1130
Lattice constants in Å
a= 13,125

b = 6,5716

c = 10,786

Crystal structure
orthorhombic
Hygroscopic susceptibility
no
Thermal conductivity in W/(m·K)
k1 = 18

k2 = 19

k3 = 21

Mohs hardness
3
Spectral properties
sample thickness: 10 mm