KTP-Electro-optic Crystal – Customized Products
KTP-Electro-optic Crystal, also known as potassium titanium phosphate oxychloride crystal with the chemical formula KTiOPO4, is a crystal product with excellent nonlinear and electro-optical properties. KTP has a high electro-optical coefficient and low dielectric constant and can operate at high frequencies and can be used as an electro-optical Q-modulation crystal. KTP also has excellent frequency doubling properties: large nonlinear coefficient, no deflection angle, high optical damage threshold, and phase matching. KTP crystals are advantageous due to their high nonlinearity, high mechanical stability, high optical quality, and transparency range of 350nm – 4500nm, and these properties determine the wide application of KTP crystals that are widely used as nonlinear media. It is an excellent solution for Nd-doped laser frequency doubling applications, especially for low to medium power applications in both intra-cavity and extra-cavity designs. It also has a wide range of applications related to frequency doubling (SHG) of Nd-doped lasers with green/red output and frequency mixing (SFM) of Nd lasers and diode lasers with blue output.
Note:
$100 is a deposit, not the final price of the product. Please contact us for price if needed.
FEATURES
High damage threshold
High temperature stability
Low half-wave voltage
Easy to grow into large crystals
Large reception angle
High photoelectric coefficien
low dielectric constant
Wide temperature range and spectral range
Crystal Specifications
Materials | KTiOPO4 |
Angle Cutting Positioning Accuracy | <30′ |
Phase Matching | Type Ⅱ,θ=90°;φ=Phase Matching Angle |
Phase Matching Range | 497-3300nm |
Angle Tolerance | Δθ≤0.25°,ΔΦ≤0.25° |
Dimensional Tolerance | (W ±0.1mm)× (H± 0.1mm)×(L+0.5/-0.1mm) L≥2.5mm |
(W ±0.1mm)× (H± 0.1mm)×(L+0.1/-0.1mm) L<2.5mm | |
Flatness | <λ/8 @633nm |
Surface Finish | 10/5 S/D |
Parallelism | <10“ |
Perpendicularity | ≤5’ |
Coating | a) S1&S2:AR@1064nm R<0.1% |
AR@532nm, R<0.25% | |
b) S1:HR@1064nm,R>99.8% | |
High temperature @808nm,T>5% | |
S2: HR@1064nm, R<0.1% | |
AR@532nm, R<0.25% | |
Coating can be customized according to user requirements |
Crystal Physical Properties
Crystal Structure | mm2 |
Lattice Constant | a=6.404Å,b=10.615Å,c=12.814Å,z=8 |
Melting Point | ~1172℃ |
Transformation Temperature | 936℃ |
Decomposition Temperature | ~1150℃ |
Optical Uniformity | dn~10-6/cm |
Hardness | ~5 |
Density | 3.01g/cm3 |
Specific Heat Capacity | 0.1737cal/g.℃ |
Absorption Coefficient | a<1%/cm@1064nm和532nm |
Hygroscopicity | No |
Dielectric Constant | 13 |
Thermal Coefficient of Expansion(@25℃-900℃) | a1=11×10-6 ℃-1 |
a2=9×10-6℃-1 | |
a3=0.6×10-6 ℃-1 | |
Thermal Conductivity | k1=2.0×10-2 W/cm ℃ |
k2=3.0×10 -2W/cm ℃ | |
k3=3.3×10-2 W/cm ℃ | |
Conductivity | 3.5×10-8 s/cm(c axis,22℃,1kHz) |
Crystal Optical Properties
Transparency Range | 497-1800nm |
Thermo-optic Coeffecient | dnx/dT=1.1×10-5/℃ |
dny/dT=1.3×10-5/℃ | |
dnz/dT=1.6×10-5/℃ | |
Sellmeier Equation | nx2=3.0065+0.03901/(I2-0.04251)-0.01327I2 |
ny2=3.0333+0.04154/(I2-0.04527)-0.01408I2 | |
nz2=3.3134+0.05694/(I2-0.05658)-0.01682I2 | |
Effective Nonlinear Optical Coefficient | deff(Ⅱ)≈(d24-d15)sin2θsin2φ-(d15sin2φ+d24cos2φ)sinθ |
Damage Threshold | >0.5GW/cm3 used for 10ns pulses @1064nm |