Ti:Sapphire crystals
Main features
- Excellent thermal conductivity
- Broad gain bandwidth
- Wide range of possible pump wavelengths (typically 532 nm)
- Custom crystals available upon request
Application examples
- Mode-locked lasers with ultrashort pulses
- Multi-pass amplifiers and regenerative amplifiers
Request custom
View stock
- Description
- Properties
- Absorption and emission curves
- Standard specifications
- Downloads
Titanium-doped sapphire (Ti3+:Al2O3) is a widely used transition-metal-doped laser crystal. Ti3+ ion has a very large gain bandwidth that opens the possibility to obtain very wide wavelength tunability realized in short-pulse lasers. To obtain crystals with good optical quality Ti3+ doping concentration should not exceed 0,25 at.%. Ti:Sapphire crystal is characterized by a short upper-state lifetime and a high saturation power.
All these properties lead to the necessity of using a strongly focused pump beam.
| Spectroscopic and thermo-mechanical properties | |
|---|---|
| Absorption peak wavelength | ~500 nm |
| Absorption cross-section at peak wavelength | 38×10-20 cm2 |
| Laser wavelength | 790 (670-1070) nm |
| Lifetime of energy level | 3,2 μs |
| Emission cross-section @790 nm | 41×10-20 cm2 |
| Refractive index @800 nm | 1,76 |
| Crystal structure | hexagonal |
| Density | 3,98 g/cm3 |
| Mohs hardness | 9 |
| Thermal conductivity | 33 Wm-1K-1 |
| dn/dT | 13×10-6 K-1 |
| Thermal expansion coefficient | 5×10-6 K-1 |
| Typical doping level | 0,1-0,25 at.% |
|
Ti:Sapphire crystals
|
|
|---|---|
| Orientation | a-cut |
| Absorption | 90-95% of 532 nm pump radiation |
| Figure of merit | >150 (for 15 mm and longer crystals) |
| Clear aperture | >90% |
| Face dimensions tolerance | +0,0/-0,1 mm |
| Length tolerance | ±0,1 mm |
| Parallelism error | <30 arcsec |
| Perpendicularity error | <10 arcmin |
| Protective chamfers | <0,15 mm at 45˚ |
| Surface quality | 10-5 S-D |
| Surface flatness | <λ/10@632,8 nm (for 6x6 mm and smaller crystals) |
| Wavefront distortion | λ/4@632,8 nm |
| Coatings | AR(R<1%)@532 nm + AR(R<0,3%)@750-850 nm on both faces |
| LIDT | >2 J/cm2@800 nm, 300 ps |
| Mount | Unmounted |
Data sheet:
Order your item
Face dimensions
Length
End faces
Coatings
SKU
PRICE
QUANTITY
3x3 mm
5 mm
Right-angle cut
AR/AR@532+750-850 nm
6632
980 €
3x3 mm
5 mm
Brewster cut
uncoated
6633
880 €
6x6 mm
7 mm
Right-angle cut
AR/AR@532+750-850 nm
6634
1080 €
6x6 mm
7 mm
Brewster cut
uncoated
6635
980 €
6x6 mm
10 mm
Right-angle cut
AR/AR@532+750-850 nm
6636
1080 €
6x6 mm
10 mm
Brewster cut
uncoated
6637
980 €
6x6 mm
15 mm
Right-angle cut
AR/AR@532+750-850 nm
6638
1180 €
6x6 mm
15 mm
Brewster cut
uncoated
6639
1080 €
⌀12 mm
15 mm
Right-angle cut
AR/AR@532+750-850 nm
6640
2150 €
⌀6 mm
20 mm
Brewster-angle cut
uncoated
6641
1080 €
⌀16 mm
20 mm
Right-angle cut
AR/AR@532+750-850 nm
6642
3950 €
⌀20 mm
25 mm
Right-angle cut
AR/AR@532+750-850 nm
6643
4950 €
⌀30 mm
25 mm
Right-angle cut
AR/AR@532+750-850 nm
6644
Request
⌀40 mm
25 mm
Right-angle cut
AR/AR@532+750-850 nm
6645
Request
⌀50 mm
25 mm
Right-angle cut
AR/AR@532+750-850 nm
6646
Request
50x50 mm
30 mm
Right-angle cut
AR/AR@532+750-850 nm
6647
Request
⌀6 mm
20 mm
Right-angle cut
AR/AR@532+750-850 nm
6648
1180 €
1
/1
Show all
