KTP KTiOPO4 Nonlinear Optical Crystals YAG Potassium Titanium Oxide Phosphate
200 nm to 2500 nm High power laser crystal Nonlinear Crystal Potassium Titanium Oxide Phosphate (KTiOPO4 )
Description:
Potassium Titanium Oxide Phosphate (KTiOPO4 ), or KTP, is an efficient nonlinear optical crystal in the visible to infrared spectral region with relatively low cost. It has large nonlinear coefficient. The effective nonlinear optical coefficient of KTP deff at 1064nm is more than 1.5 times that of BBO.
Main Features
★ Wide Angular Bandwidth and Small Walk-off Angle
★ Broad Temperature and Spectral Bandwidth
★ High Electro-Optic (E-O) Coefficient and Low Dielectric Constant
★ Large Figure of Merit for an Optical Waveguide Modulator
★ Nonhygroscopic, Good Chemical and Mechanical Properties
★ Efficient frequency conversion(1064nm SHG conversion efficiency is about 80%)
★ Large nonlinear optical coefficients
★ High thermal conductivity
★ Minimum mismatch gradient
★ Low cost compare with BBO and LBO
Typical Applications
★ Frequency Mixing (SFM) of Nd Laser and Diode Laser for Blue Output
★ Frequency Doubling (SHG) of Nd-doped Lasers for Green/Red Output
★ Parametric Sources (OPG, OPA and OPO) for 0.6um-4.5um Tunable Output
★ E-O Modulators, Optical Switches, Directional Couplers
★ Optical Waveguides for Integrated NLO and E-O Devices
Specifications
| Dimension Tolerance | ±0.1mm |
| Angle Tolerance | Δθ< 0.5°, Δφ< 0.5° |
| Surface Quality | 10/5 Scratch/Dig |
| Clear Aperture | >95% |
| Surface Flatness | <λ/8@633nm |
| Wavefront Distortion | <λ/4@633nm |
| Parallelism | <20 arc seconds |
| Perpendicularity | <15 arc minutes |
| Residual Reflectivity | <0.2% at 1064nm and <0.5% at 532nm |
| Coating |
AR/AR@1064&532nm: S1&S2 AR@1064&532nm, R<0.25%@1064nm, R<0.5%@532nm
HR/AR@1064&532nm:S1 HR@1064nm&HT@532nm, R>99.8%@1064nm, R<5%@532nm |
| Quality Warranty Period | One year under proper use |
Overview
hysical and Optical Properties
| Crystal Structure | Orthorhombic, point group mm2 | ||
| Cell Parameters | a = 6.404A, b = 10.616A c = 12.814A, Z = 8 | ||
| Melting Point | 1172 oC | ||
| Curie Point | 936 oC | ||
| Mohs Hardness | 5.0 | ||
| Density | 3.01g/cm3 | ||
| Linear Absorption Coefficients | a<0.001cm-1 @1064nm or 532nm | ||
| Hygroscopic Susceptibility | no | ||
| Relative Dielectric Constant | eeff=13 | ||
| Specific Heat | 0.1643cal/g.oC | ||
| Electrical Conductivity | 3.5x10-8 s/cm (c-axis, 22oC, 1KHz) | ||
| Thermal Conductivity | 13W/m/K | ||
| Transmitting Range | 350nm~4500nm | ||
| Absorption Coefficients | a < 1%/cm @1064nm and 532nm | ||
| Phase Matchable Range | 0.984-3.4μm | ||
| Therm-Optic Coefficients | dnx/dT=1.1x10-5/℃ dny/dT=1.3x10-5/℃ dnz/dT=1.6x10-5/℃ |
||
| Nonlinear Optical Coefficients | d31=2.54pm/V, d31=4.35pm/V, d31=16.9pm/V d24=3.64pm/V, d15=1.91pm/V at 1.064 µm deff(II)≈ (d24 - d15)sin2φsin2θ - (d15sin2φ + d24cos2φ)sinθ |
||
| Electro-Optic Coefficients |
|
High Frequency(pm/V)
|
Low Frequency(pm/V)
|
|
r13
|
8.8
|
9.5
|
|
|
r23
|
13.8
|
15.7
|
|
|
r33
|
35.0
|
36.3
|
|
|
r51
|
6.9
|
7.3
|
|
|
r42
|
8.8
|
9.3
|
|
| Sellmeier Equations(λ in um) | 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 |
||
| Optical Damage Threshold | > 450MW/cm2, (@ 1.06µm, 10ns, 10Hz) | ||
Type II SHG of 1064nm Laser
| Phase Matching Angle | θ=90o, φ=23.5o, where θ & φ are polar angles referring to Z and X |
| Effective SHG Coefficient | deff =8.3xd36(KDP) |
| Angular Acceptance | 20mrad-cm |
| Temperature Acceptance | 25oC-cm |
| Spectral Acceptance | 5.6A-cm |
| Walk-off Angle | 4.5mrad (0.26o) |
Packing Details :Use Good and Strong Cartons to pack
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