Z-optics Co.,Ltd. - NLO Crystal(KTP, LBO, AgGaSe2, AgGaS2)

KTP possesses excellent nonlinear and electro-optic properties. It has large nonlinear optical coefficients, broad temperature and spectral bandwidth, wide angular bandwidth and small walk-off angel. It can be used as an intracavity and extracavity frequency double for the most commonly used lasers, such as Nd:YAG, Nd:glass and Nd:YLF.

Crystal Structure:

Orthorhombic, point group mm2

Melting Point:

About 1172 ^oC

Curie point:

936^oC

Mohs Hardness:

5.0

Density:

3.01g/cm3

Transmitting range:

350nm~4500nm

Phase matchable range:

0.984 - 3.4 μ m

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:

dn_x/dT=1.1x10^-5/^oC

dn_y/dT=1.3x10^-5/^oC
dn_z/dT=1.6x10^-5/^oC

Sellmeier Equations:

n²_x=3.0065+0.03901/(l²-0.04251)-0.01327l²

n²_y=3.0333+0.04154/(l²-0.04547)-0.01408l²
n²_z=3.3134+0.05694/(l²-0.05658)-0.01682l²

Nonlinear optical coefficients:

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

d₂₄=3.64pm/V, d₁₅=1.91pm/V at 1064 nm
d_eff(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                                        35.0
  g₅₁                    7.3                                         6.99
  g₄₂                    9.3                                          8.8

Linear Absorption Coefficients:

a <0.001 cm-1 @ λ =1064 nm or 532 nm

Hygroscopic:

Relative Dielectric Constant:

ε eff =13

Specific heat:

0.1643 cal/g. ^oC

Electrical conductivity:

3.5x10-8 s/cm (c-axis, 22^oC, 1KHz)

Thermal Conductivity:

13W/m/K