|
Laser Crystals
------>> Ti:Sapphire
|
| Al2O3:Ti3+ - titanium-doped sapphire crystals combine supreme physical and optical
properties with broadest lasing range, It's indefinitely long stability
and useful lifetime added to the lasing over entire band of 660-1050 nm
challenge "dirty" dyes in variety of applications. Medical laser
systems, lidars, laser spectroscopy, direct femtosecond pulse generation
by Kerr-type mode-locking - there are few of existing and potential applications.
|  |
The absorption band of Ti:Sapphire centered at 490 nm makes it suitable for variety of laser pump sources - argon ion, frequency doubled Nd:YAG and YLF, copper vapour lasers. Because of 3.2 ¦Ěs fluorescence lifetime Ti:Sapphire crystals can be effectively pumped by short pulse flashlamps in powerful laser systems.
FOCTEK produces a wide variety of finished laser rods and slabs, our general Ti:Sapphire production capabilities include: |
| 1) |
Ti2O3 conentration:
0.06-0.5 wt% |
|
2)
|
Figure of Merit: 100~300 |
|
3)
|
Diameter: 2~50mm |
|
4)
|
Path Length: 2~130mm |
|
5)
|
End configuration: flat/flat or Brewster/Brewster
ends or Specified |
| Typical
Specification and Tolerance: |
|
1)
|
Orientation: Optical axis C normal
to rod axis |
|
2)
|
¦Á490: 1.0-7.5cm-1 |
|
3)
|
Flatness: 10 @633nm |
|
4)
|
Parallelism: 10 arcsec |
|
5)
|
Surface quality: 10/5 scratch/dig |
|
6)
|
Wavefront distortion: 4 per inch |
| Notes: |
|
To inquiry or order
a finished Ti3+:Sapphire laser rod, please specify the
specification listed above in details for evaluation and fabrication.
Dopant concentration, sizes and end configuration are essential
specification.
|
| Physical
and Optical Properties |
| Chemical formula |
Ti3+: Al2O3 |
| Crystal structure |
Hexagonal |
| Melting point |
2050 °C |
| Density |
3.98 g/cm3 |
| Mohs hardness |
9 |
| Thermal conductivity |
0.11 cal/(°C x sec
x cm) |
| Specific heat |
0.10 cal/g |
| Laser action |
4-Level Vibronic |
| Lattice constants |
a = 4.748, c = 12.957 |
| Fluorescence lifetime |
3.2 ¦Ěsec (T = 300 K) |
| Tuning range |
660-1050 nm |
| Absorbtion range |
400-600 nm |
| Emission peak |
795 nm |
| Absorption peak |
488 nm |
| Refractive index |
1.76 @ 800 nm |
|
|