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KTP

Key words:

KTP

Classification:

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Detail

Introduction to KTP: It has the characteristics of large non-linear coefficient, large allowable temperature and allowable angle, high laser damage threshold, stable chemical properties, non-deliquescent, moderate mechanical strength, frequency doubling conversion efficiency up to 70% or more. It is a medium and small power solid The best frequency doubling material for green lasers.

Crystal structure and physical properties:

 

Crystal structure

Orthorhombic,   space group Pna21,point group mm2

Cell parameters

a=6.404,   b=10.616, c=12.814, Z=8

Melting point

1172C   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-1)

Electrical conductivity

3.5x10-8   s/cm (c-axis, 22°C, 1KHz)

Thermal   Expansion Coefficients

x轴方向:11×10-6
y轴方向:9×10-6
z轴方向:0.6×10-6

 

Crystal structure and physical properties:

 

尺寸公差

±0.1mm

平面度

λ / 10 @ 633nm

光洁度

10/5 (MIL-PRF-13830B)

平行度

优于20弧秒

垂直度

优于5弧分

角度公差

<±0.2°

镀膜

增透膜

剩余反射

R1064 <0.2%, R532 <0.5%, R1570 <0.2%

有效孔径

中央直径大于 90%

波前畸变

小于λ / 8 @ 633nm

 

Application scope:

Now the main applications are double frequency and OPO applications (laser ranging), especially OPO applications have developed rapidly in recent years. Neodymium-doped crystal laser double frequency (SHG) obtains green/red light output Solid-state laser mixing (SFM) such as neodymium-doped crystal to obtain blue light output OPG, OPA and OPO get dimmable in the range of 0.6um-4.5um Electro-optical (E-O) modulation, optical switch Optical waveguide, making periodically polarized KTP devices Mainly used in industrial processing (internal carving, marking, etc.), military distance measurement, blinding weapons, laser medical treatment (beauty), laser demonstration and scientific research experiments.

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