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Ti Sapphire Laser Crystal laser-crylink

Ti:Sapphire (Titanium doped Sapphire)

Ti3+:sapphire crystals (Titanium-doped sapphire) as an optically pumped, solid-state laser crystal is widely used in wavelength-tunable lasers.

Ti:Sapphire laser’s tunable range is 650-1100nm, and peaking at 800nm. It is one of the broadest wavelength-tunable laser crystals. The upper-state lifetime of Ti: sapphire is short to 3.2μs.

Because of the high saturation power, it’s hard to pump it by the lamp. Argon ion lasers, frequency-doubled Nd: YAG laser, etc., are usually adapted. Using self-mode-locking technology, the Ti: Sapphire laser can output laser pulse with pulse width as short as 6.5fs directly, the narrowest laser pulse of all lasers that directly output from the resonant cavity. The laser beam’s wavelength can cover broadband from blue to deep ultraviolet through frequency-double technology. Produced 193 nm laser has been used in lithography machine.


Concentration(0.05~0.35) wt%
OrientationA-Axis within 5°,E-vector parallel to C-Axis
Figure of Merit(FOM)100~300
Wavefront Distortion<­λ /4@632 nm
Surface Flatness<λ­/8@632 nm
Clear Aperture>90%
Surface Quality10-5(MIL-PRF-13830B)
CoatingsStandard coating is AR with R < 5.0% each
face @532 nm and R < 0.5% each face,
from 650 nm to 850 nm. Custom coatings
Crystal StructureHexagonal
Density3.98 g/cm3
Melting Point2040 °C
Thermal Conductivity33 W / (m K)
Temperature dependence of refractive index13 × 106K1
Thermal shock resistance parameter790 W/m
Thermal Expansion≈ 5 × 10-6K-1
Hardness (Mohs)9
Young`s Modulus /GPa335
Specific heat0.1 cal/g
Tensile Strength/Mpa400
Ti density for 0.1% at. doping4.56 × 1019cm3
Laser TransitionF3/2→F1/2
Laser Wavelength660-1200 nm
Central emission800 nm
Turnable Absorption Band400-600 nm
Absorption peak488 nm
Emission Cross Section @ 790 nm41 × 10-20 cm2
Fluorescence Lifetime3.2 μs
Emission Linewidth650-1100 nm
Refractive Index @633 nm1.77@ 532 nm; 1.76@800 nm; 1.75@1100 nm
Absorption Coefficient0.5~6.0 cm-1

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