what are you looking for?
Potassium Titanyl Phosphate (KTiOPO4 or KTP) is widely used in
both commercial and military lasers including laboratory and medical systems,
range-finders, lidar, optical communication and industrial systems.
Product Origin:
ChinaShipping Port:
Fuzhou, ChinaLead Time:
3-4weeks
Descriptions:
KTP Nonlinear crystal Potassium Titanyl Phosphate is the most commonly used material for frequency doubling of Nd-doped lasers, particularly at the low or medium power density. It is widely used for frequency mixing to generate Red/Green/Blue output, and for OPO and OPA to generate visible to mid-infrared tunable output. It is also used for many E-O devices such as Q-switches and E-O modulators.
Main applications:
1） Frequency Doubling (SHG) of Nd-doped Lasers for Green/Red Output;
2） Frequency Mixing (SFM) of Nd Laser and Diode Laser for Blue Output;
3） Parametric Sources (OPG, OPA and OPO) for 600nm - 4500nm Tunable Ouptut;
4） E-O Modulators, Optical Switches, Directional Couplers;
5） Optical Waveguides for Integrated NLO and E-O DevicesOPA and OPO.
Advantages:
1) Large nonlinear optical coefficient;
2) Wide angular bandwidth and small walk-off angle
3) Broad temperature and spectral bandwidth;
4) High Electro-Optics(E-O) coefficient and low dielectric constant;
5) Non-hygroscopic, chemically and mechanically stable
Optical and Nonlinear properties of KTP crystal
|
Transparency Range |
350~4500nm |
|
SHG Phase Matchable Range |
497 ~ 1800nm (Type II) |
|
Therm-optic Coefficient (/℃, λ in μm) |
dnx/dT=1.1X10-5 |
|
Absorption Coefficients |
<0.1%/cm at 1064nm <1%/cm at 532nm |
|
Angle Acceptance |
14.2mrad·cm (φ);55.3mrad·cm (θ) for Type II SHG of a Nd:YAG laser at 1064nm |
|
Temperature Acceptance |
24°C·cm for Type II SHG of a Nd:YAG laser at 1064nm |
|
Spectral Acceptance |
0.56nm·cm for Type II SHG of a Nd:YAG laser at 1064nm |
|
Walk-off Angle |
0.55° for Type II SHG of a Nd:YAG laser at 1064nm |
|
NLO Coefficients |
deff(II)≈(d24 - d15)sin2Φsin2θ - (d15sin2Φ + d24cos2Φ)sinθ |
|
Non-vanished NLO susceptibilities |
d31=6.5 pm/V d24=7.6 pm/V |
|
Sellmeier Equations (λ in μm) |
nx2=3.0065+0.03901/(λ2-0.04251)-0.01327λ2 |
|
Electro-optic Coefficients: r13 r23 r33 r51 r42 |
Low and High frequency (pm/V) 9.5 and 8.8 15.7and 13.8 36.3 and 35 7.3 and 6.9 9.3 and 8.8 |
|
Relative Dielectric Constant |
εeff=13 |
Physical properties of KTP crystal
|
Crystal Structure |
Orthorhombic, space group Pna21,point group mm2 |
|
Lattice Parameter |
a=6.404Å, b=10.616Å, c=12.814A, Z=8 |
|
Melting Point |
About 1172°C |
|
Mohs Hardness |
5 |
|
Density |
3.01 g/cm3 |
|
Refractive indices |
nX = 1,7404; nY = 1,7479; nZ = 1,8296 @1064 nm |
|
Thermal Conductivity |
13W/m/K |
|
Thermal Expansion Coefficients |
ax=11x10-6/℃, ay=9x10-6/℃, az=0.6x10-6/℃ |
HGO offers KTP specifications:
|
Tolerance of cutting angle |
△θ≤±0.25°,△φ≤±0.25° |
|
Tolerance of dimension |
Dimension+0/-0.1 mm，L：±0.1mm |
|
Flatness |
λ/10 @ 632.8nm |
|
Wavefront distortion |
λ/8@ 632.8nm |
|
Surface quality |
10/5 per MIL-O-13830A |
|
Parallelism |
20″ |
|
Perpendicularity |
5′ |
|
Clear Aperture: |
> 90% |
|
Chamfer: |
< 0.1 mm @ 45° |
|
Size |
Upon customer request |
|
Coating |
AR/HR coating upon customer’s request |
|
Damage Threshold |
750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz |
|
Quality Warranty Period |
One year under proper use |
Why Choose HGO ?
HGO can supply high quality potassium titanyl phosphate (KTiOPO4, KTP) nonlinear crystals. Size up to 20mm*20mm*40mm and length from 0.1mm up to 80mm.
Besides, HGO provides high grey track resistance HGTR-KTP crystals as a solution, which significantly improves the grey-track resistance and overall performance. HGTR-KTP crystals extend the use of KTP as a nonlinear medium to high-power applications.
Leave A Message
HGO grows LBO Nonlinear crystals using flux technology. LBO crystals is an excellent nonlinear crystal.For frequency doubling(SHG),tripling(THG) of Nd:YAG,Nd:YLF,Nd:YVO4 lasers, it is one of the most useful nonlinear optical materials in ultraviolet and visible laser applications.
Read More
HGO grows BBO Nonlinear crystals using flux technology. BBO crystal transparency ranges from 188 nm to 5,2 µm, which includes reasonable transparency from 3-5,2 µm for few tens µm thick crystals, while their phase-matchable range spans almost over the entire transparency range. Combined with other magnificent properties of BBO, it is favorable for numerous nonlinear parametric applications. It is worth to mention that BBO crystals have the highest nonlinearity in the UV range out of all common nonlinear crystals.
Read More
LiNbO3 is widely used as electro-optic modulators and Q-switches for Nd:YAG, Nd:YLF and Ti:Sapphire lasers as well as modulators for fiber optics.
Read More
KDP Potassium Dihydrogen Phosphate and KD*P or DKDP Potassium Dideuterium Phosphate are among the most widely-used commercial NLO materials, characterized by good UV transmission, high damage threshold, and high birefringence, though their NLO coefficients are relatively low. They are usually used for doubling, tripling and quadrupling of a Nd:YAG laser under the room temperature. In addition, they are also excellent electro-optic crystals with high electro-optic coefficients, widely used as electro-optical modulators, such as Q-switches, Pockels Cells, etc.
Read More
HGO grows Nd:YLF laser crystals using Czochralski technology. Nd3+:YLF crystal is characterized by its long lifetime of 4F3/2 neodymium energy level. Compared to Nd:YAG, the lower thermal conductivity and a weak negative dn/dT lead to lower thermal distortions and allow to achieve a better output beam quality. Another distinctive feature is the high UV transparency, which is favorable for pumping with xenon flash lamps.
Read More
Colored glass filters are optical components that control incident wavelength by distributing an optical absorbing substance in glass.
Read More
HGO grows BBO Nonlinear crystals using flux technology. BBO crystal transparency ranges from 188 nm to 5,2 µm, which includes reasonable transparency from 3-5,2 µm for few tens µm thick crystals, while their phase-matchable range spans almost over the entire transparency range. Combined with other magnificent properties of BBO, it is favorable for numerous nonlinear parametric applications. It is worth to mention that BBO crystals have the highest nonlinearity in the UV range out of all common nonlinear crystals.
Read More
Silicon is used as an optical window primarily in the 3 to 5 micron band and as a subsrate for production of optical filters and windows. Silicon (Si) is grown by Czochralski pulling techniques (CZ) and contains some oxygen that causes an absorption band at 9 microns. To avoid this, material can be prepared by a Float-Zone (FZ) process. Optical silicon is generally lightly doped (5 to 40 ohm cm) for best transmission above 10 microns, and doping is usually boron (P-type) and phosphorus (N-type). After doping silicon has a further pass band: 30 to 100 microns which is effective only in very high resistivity uncompensated material.
Read More
IPv6 network supported
