- Overview
- Product Parameters
- Application
Basic Info.
Model NO.
FW-CRYSTAL
Crystal
Non-Linear
Transport Package
Box
Specification
costomized
Trademark
FineWin
Origin
Henan China
Product Description
Potassium Titanyl Phosphate (KTiOPO4,KTP)
KTP (KTiOPO4) is an excellent non-linear crystal. It exhibts high optical quality, broad transparent range, relatively effective SHG coefficient ( about 3 times higher than that of KDP), very high optical damage threshold, wide acceptance angle, small walk-off , and type 1and type 2 non-critial phase-matching (NCPM) in a wide wavelength range. KTP is the most commonly used material for frequency doubling of Nd:YAG laser and other Nd-doped lasers, particularly at the low or medium power density. The properties of KTP make it superior as an electro-optic modulator as well as an optical waveguide device, including phase modulators, amplitude modulators and directional couplers.
| Flank Size(W*H): | 1×1~15×15 |
| Length(L): | 0.05~20mm |
| Angle Tolerance: | Δθ< ± 0.2°; Δφ< ±0.2° |
| Size Tolerance: | (W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/-0.1mm) |
| Flatness: | <λ/8 @ 633nm |
| Smooth Finish: | 20/10 |
| Parallelism: | <30" |
| Perpendicularity: | <10' |
| Wavefront Distortion: | < λ/8 @ 633nm |
| Clear Aperture: | > 90% |
| Coating: | According to customer request |
Physical and Optical Properties:
| Crystal Structure | orthorhombic system, space group Pna21, point group mm2 |
| Cell Parameters | a=6.404?, b=10.616?, c=12.814, Z=8 |
| Melting Point | About 1172 Degree |
| Mohs Hardness | 5 |
| Density | 3.01 g/cm3 |
| Thermal Conductivity | 13W/m/K |
| thermal expansion coefficient | ax=11x10-6/0C, ay=9x10-6/0C, az=0.6x10-6/0C |
| Dialytic Wavebands | 350~4500nm |
| SHG | 497 ~ 1800nm (Type II) |
| Thermo-Optical Coeffecient(/°C) | dnx/dT=1.1X10-5 dny/dT=1.3X10-5 dnz/dT=1.6X10-5 |
| Absorption Coefficient | <0.1%/cm at 1064nm <1%/cm at 532nm |
| For Type II SHG of a Nd:YAG laser at 1064nm | Temperature Acceptance: 24°C-cm Spectral Acceptance: 0.56nm-cm Angular Acceptance: 14.2mrad-cm (φ);55.3mrad-cm (q) Walk-off Angle: 0.55° |
| Nonlinear Coefficient | d31=6.5 pm/V d24=7.6 pm/V d32= 5 pm/V d15=6.1 pm/V d33=13.7 pm/V |
| Sellmeier Equation (λ in μm) | nx2=3.0065+0.03901/(λ2-0.04251)-0.01327λ2 ny2=3.0333+0.04154/(λ2-0.04547)-0.01408λ2 nz2=3.3134+0.05694/(λ2-0.05658)-0.01682λ2 |
Characteristic:
- Product Name: KTP
- Dimension Tolerance:W x H (+/- 0.1mm) x L (+0.5/-0.1mm)
- Angle Tolerance:Δθ ≤ 0.25°, Δφ ≤ 0.25°
- Parallelism:< 20 arc seconds
- Perpendicularity:< 5 arc minutes
- Chamfer:0.1mm at 45°
- Clear Aperture:90%
- Scratch and Dig:10/5
- Surface Flatness:λ/8 at 633nm
- Wavefront Distortion:λ/8 at 633nm
- Damage Threshold (AR coated):> 0.5 GW/cm2 TEM00, 10ns, 10Hz at 1064nm > 0.3 GW/cm2 TEM00, 10ns, 10Hz at 532nm
KTP or Potassium Titanyl Phosphate (KTiOPO4) is widely used in both commercial lasers including laboratory and medical systems, range finders, lidar, optical communication and industrial systems. It has large nonlinear optical coefficient, wide angular bandwidth and small walk-of angle. As well as broad temperature and spectral bandwidth.
