KTP
Key words:
KTP
Classification:
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 |
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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