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Ti:Sapphire - Titanium Doped Sapphire
Introduction
Titanium Doped Sapphire (Ti:Sapphire) is the most widely used laser crystal for widely tunable and ultrashort pulsed lasers with high gain and power outputs. CASTECH possesses the advanced growth method of Temperature Gradient Technique (TGT), and it supplies large-sized (Dia.30×30 mm3) Ti:Sapphire crystal in high quality free of light scatter, with the dislocation density less than 102 cm-2. The TGT grown sapphire crystal is characterized by the [0001] oriented growth, high doping level (α490 = 4.0 cm-1), high gain and laser damage threshold.
Main Applications
- The tunable wavelengths that cover a broad range from 700 to 1000 nm make Ti:Sapphire an excellent substitute for dye lasers in many applications.
- Doubling by NLO crystals such as BBO in an ultra-thin, Ti:Sapphire can be used to generate UV and DUV (up to 193 nm) laser with ultrafast pulses below 10 fs.
- Ti:Sapphire is also widely used as the pump source of OPOs to expand the tunable range.
Table 1. Basic Properties |
|
Chemical Formula |
Ti3+: Al2O3 |
Crystal Structure |
Hexagonal |
Lattice Parameter |
a=4.758 Å, c=12.991 Å |
Density |
3.98 g/cm3 |
Melting Point |
2040 ℃ |
Mohs Hardness |
9 Mohs |
Thermal Conductivity |
52 W/m/k |
Specific Heat |
0.42 J/g/K |
Laser Action |
4-level Vibronic |
Fluorescence Lifetime |
3.2 μs (T = 300K) |
Tuning Range |
660-1050 nm |
Absorption Range |
400-600 nm |
Emission Peak |
795 nm |
Absorption Peak |
488 nm |
Refractive Index |
1.76 @800 nm |
Peak Cross-section |
3~4×10-19 cm2 |
Thermal Expansion |
8.40 × 10-6 /℃ |
Specifications of Ti:Sapphire crystal from CASTECH
Table 2. Specifications |
|
Orientation |
Optical axis c normal to rod axis |
Ti2O3 concentration |
0.06-0.26 at.% |
Figure Of Merit (FOM) |
100~250 (>250 available upon special requests) |
α490 |
1.0-4.0 cm-1 |
Diameter |
2~30 mm or specified |
Path Length |
2~30 mm or specified |
End Configurations |
Flat/Flat or Brewster/Brewster ends |
Surface Quality (Scratch / Dig) |
40/20 to MIL-PRF-13830B |
Flatness |
≦λ/8 @633nm |
Wavefront Distortion |
≦λ/4 @633 nm |
Parallelism |
20 arc sec |
Perpendicularity |
≦15 arc min |
Note
AR-Coating is available upon request.
Products
-
Ti:Sapphire - Titanium Doped Sapphire
- Ti:Sapphire is the most widely used laser crystal for tunable and ultrashort pulsed lasers with high gain and power outputs. CASTECH supplies large-sized Ti:Sapphire wiht high quality.
-
Introduction
Titanium Doped Sapphire (Ti:Sapphire) is the most widely used laser crystal for widely tunable and ultrashort pulsed lasers with high gain and power outputs. CASTECH possesses the advanced growth method of Temperature Gradient Technique (TGT), and it supplies large-sized (Dia.30×30 mm3) Ti:Sapphire crystal in high quality free of light scatter, with the dislocation density less than 102 cm-2. The TGT grown sapphire crystal is characterized by the [0001] oriented growth, high doping level (α490 = 4.0 cm-1), high gain and laser damage threshold.
Main Applications
- The tunable wavelengths that cover a broad range from 700 to 1000 nm make Ti:Sapphire an excellent substitute for dye lasers in many applications.
- Doubling by NLO crystals such as BBO in an ultra-thin, Ti:Sapphire can be used to generate UV and DUV (up to 193 nm) laser with ultrafast pulses below 10 fs.
- Ti:Sapphire is also widely used as the pump source of OPOs to expand the tunable range.
Table 1. Basic Properties |
|
Chemical Formula |
Ti3+: Al2O3 |
Crystal Structure |
Hexagonal |
Lattice Parameter |
a=4.758 Å, c=12.991 Å |
Density |
3.98 g/cm3 |
Melting Point |
2040 ℃ |
Mohs Hardness |
9 Mohs |
Thermal Conductivity |
52 W/m/k |
Specific Heat |
0.42 J/g/K |
Laser Action |
4-level Vibronic |
Fluorescence Lifetime |
3.2 μs (T = 300K) |
Tuning Range |
660-1050 nm |
Absorption Range |
400-600 nm |
Emission Peak |
795 nm |
Absorption Peak |
488 nm |
Refractive Index |
1.76 @800 nm |
Peak Cross-section |
3~4×10-19 cm2 |
Thermal Expansion |
8.40 × 10-6 /℃ |
Specifications of Ti:Sapphire crystal from CASTECH
Table 2. Specifications |
|
Orientation |
Optical axis c normal to rod axis |
Ti2O3 concentration |
0.06-0.26 at.% |
Figure Of Merit (FOM) |
100~250 (>250 available upon special requests) |
α490 |
1.0-4.0 cm-1 |
Diameter |
2~30 mm or specified |
Path Length |
2~30 mm or specified |
End Configurations |
Flat/Flat or Brewster/Brewster ends |
Surface Quality (Scratch / Dig) |
40/20 to MIL-PRF-13830B |
Flatness |
≦λ/8 @633nm |
Wavefront Distortion |
≦λ/4 @633 nm |
Parallelism |
20 arc sec |
Perpendicularity |
≦15 arc min |
Note
AR-Coating is available upon request.