|
Ti:Sapphire (Al2O3:Ti3+)- titanium-doped sapphire crystals combine supreme
physical and optical properties with broadest lasing range. Its
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 the pump
source for a variety of
lasers - argon ion, frequency doubled Nd:YAG and YLF, copper
vapour lasers. Due to its 3.2 μs fluorescence lifetime, Ti:Sapphire
crystals can be effectively pumped by short pulse flashlamps in powerful
laser systems.
Red Optronics supplies a wide variety of finished laser rods and slabs. Our
standard Ti:Sapphire
production follows:
|
Main Specifications
|
|
| Ti2O3
concentration |
0.06-0.5
wt% |
| Figure of
Merit |
100~300 |
| Diameter |
2~50mm |
| Path
Length |
2~130mm |
| End
configuration |
flat/flat
or Brewster/Brewster ends or custom specified |
| Orientation |
Optical
axis C normal to rod axis |
| α490 |
1.0-7.5cm-1 |
| Flatness |
10
@633nm |
| Parallelism |
10
arcsec |
| Surface
quality |
10/5
scratch/dig |
| Wavefront
distortion |
4 per
inch |
|
Notes:
To inquire or
order a finished Ti3+:Sapphire laser rod,
please provide detailed specification as listed in the above for evaluation
and fabrication. Dopant concentration, sizes and end configuration are
essential specification.
|
Physical Properties
|
|
| Chemical
formula |
Ti3+: Al2O3 |
| Crystal
structure |
Hexagonal |
| Melting
point |
2050
°C |
| Density |
3.98
g/cm3 |
| Hardness |
9 Mohs |
| Thermal
conductivity |
0.11
cal/(°C x sec x cm) |
| Specific
heat |
0.10
cal/g |
| Optical
Properties |
|
| Laser
action |
4-Level
Vibronic |
| Lattice
constants |
a = 4.748,
c = 12.957 |
| Fluorescence lifetime |
3.2 μsec
(T = 300 K) |
| Tuning
range |
660-1050
nm |
| Absorption range |
400-600
nm |
| Emission
peak |
795
nm |
| Absorption
peak |
488
nm |
| Refractive
index |
1.76 @ 800
nm |
|
|
