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laser crystal
optical crystal
Ti:sapphire(Ti:Al2O3)
Titanium-doped sapphire (Ti:Sapphire) is widely used in lasers with high output power, high gain, wide-band tunable and ultrashort-wave pulses. It has characteristics such as low light scattering and ..
Product description
Titanium-doped sapphire (Ti:Sapphire) is widely used in lasers with high output power, high gain, wide-band tunable and ultrashort-wave pulses. It has characteristics such as low light scattering and low dislocation density (less than 102/cm²). The Ti:Sapphire crystal grown by the temperature gradient method is grown with the (0001) orientation as the characteristic, and also has a high doping concentration (a₄₉₀ = 7.5 cm⁻¹), high gain and high laser damage threshold.
Main Applications:
The titanium-doped sapphire crystal (Ti:Sapphire) is widely used in high-output-power, high-gain, wide-band tunable ultrashort-wave pulse lasers. Zhongce Company has an advanced Temperature Gradient (TGT) growth method and can provide large-sized (diameter 120×80 mm²) high-quality Ti:Sapphire crystals, which have characteristics such as low light scattering and low dislocation density (< 102 cm⁻²). The Ti:Sapphire crystal grown by the temperature gradient method is grown along the [0001] crystal orientation, and at the same time, it has a high doping concentration (α490 = 4.0 cm⁻¹), high gain and high laser damage threshold.
Main Applications:
- The tunable wavelength covers the range of 700-1000 nm, enabling Ti:Sapphire to replace dye lasers in many applications.
- Using ultra-thin non-critical phase-matching crystals such as BBO as frequency doubling devices, Ti:Sapphire can generate ultrashort pulse ultraviolet to deep ultraviolet (up to 193 nm) lasers with a duration of less than 10 fs.
- Ti:Sapphire is also widely used as a pump source for optical parametric oscillation to expand its tunable range.
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Molecular Formula
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Ti³⁺:Al₂O₃
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Crystal Structure
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Hexagonal Crystal System
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Lattice Constant
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a = 4.758 Å, c = 12.991 Å
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Density
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3.98 g/cm³
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Melting Point
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2040 ℃
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Mohs Hardness
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9 Mohs
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Thermal Conductivity
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52 W/m/k
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Specific Heat
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0.42 J/g/K
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Laser Generation
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Four Energy Levels
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Fluorescence Lifetime
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3.2 μs (T = 300 K)
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Tuning Range
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660-1050 nm
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Absorption Range
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400-600 nm
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Emission Peak
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795 nm
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Absorption Peak
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488 nm
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Refractive Index
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1.76 @ 800 nm
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Peak Cross-Section
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3~4×10⁻¹⁹ cm²
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Coefficient of Thermal Expansion
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8.40×10⁻⁶ /℃
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Specifications of Titanium-doped Sapphire Crystal:
| Orientation | The C-axis is the optical axis direction, and the optical axis direction is perpendicular to the crystal surface. |
| Concentration of Ti₂O₃ | 0.06-0.26 at.% |
| Quality Factor | 100~250 units (Products with a value greater than 250 can be customized) |
| α490 | 1.0-4.0 cm⁻¹ |
| Diameter | 2~30 mm (Can be customized) |
| Optical Path | 2~30 mm (Can be customized) |
| End Face | Double parallel planes or Brewster cut at both ends |
| Surface Finish | 40/20, Refer to MIL-PRF-13830B standard |
| Flatness | ≤λ/8 @ 633 nm |
| Transmission Wavefront Distortion | ≤λ/4 @ 633 nm |
| Parallelism | 20" |
| Perpendicularity | ≤ 15' |
| Customized coating system services are available. |
