Ti:Sapphire is a transition metal doped laser crystal with good comprehensive properties. It is widely used in lasers with high output power and high gain wide-band tunable ultrashort wave pulses.
Main featuresTypical applications:
♦ Broad wavelength tunabilit
♦ Alternative to dye lasers
♦ Absorption pump bandwidth
♦ Short excited state lifetime (3.2 mm)
♦ High damage threshold and excellent output efficiency
♦ Excellent thermal conductivity
Typical applications:
♦ Wavelength Tunable Laser
♦ Alternative to dye lasers
♦ Generates ultrashort pulsed UV and deep UV (~193 nm) lasers below 10 fs
♦ Pump source for optical parametric amplification to expand its tunable range
Absorption and emission curves of Ti:Sapphire
Technical Parameters
Argument Name | Values and Ranges |
Directional | The C-axis is the direction of the optical axis, and the direction of the optical axis is perpendicular to the crystal surface |
Clear aperture | > 90% |
Chamfering | < 0.2 × 45° |
Finish | < 10/5 |
Flatness | < 1/10@633nm |
Wavefront distortion | < λ /4@633nm |
Parallelism | < 30 arc sec |
Perpendicularity | < 5 arc min |
Doping concentration | 0.06 - 0.26 atm% |
Quality warranty period | 1 year (with normal use) |
Crystal Structure and Physical Properties
Argument Name | Values and Ranges |
Crystal structure | Hexagonal |
Lattice constant | a=4.758 Å，c=12.991 Å |
Density | 3.98 g/cm3 |
Melting point | 2040°C |
Mohs hardness | 9 |
Thermal conductivity | 52 W/m/k |
Specific heat | 0.42 J/g/K |
Laser action | 4-level Vibronic |
Fluorescence lifetime | 3.2 μs (T=300 K) |
Tuning range | 660 - 1050 nm |
Absorption range | 400 - 600 nm |
Reflection peaks | 795 nm |
Absorption peaks | 488 nm |
Refractive index | 1.76 @ 800nm |
Cross-section peaks | 3~4 × 10-19 cm2 |
Coefficient of thermal expansion | 8.40 × 10-6/°C |
Standard Size
Product NO. | Diameter（mm) | Length（mm) | Cutting direction | Coating |
T-S-301 | 3 | 5 | Right-angle cut | AR/AR@532+750-850 nm |
T-S-302 | 3 | 5 | Brewster cut | Uncoated |
T-S-601 | 6 | 7 | Right-angle cut | AR/AR@532+750-850 nm |
T-S-602 | 6 | 7 | Brewster cut | Uncoated |
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