- Solid State Laser
- Semiconductor Laser
- DPSS laser
- Gas Laser
- Fiber Laser
- Fiber Coupled Laser(MM)
- Fiber Coupled Laser(SM)
- Ultrafast laser
- Femtosecond Laser
- Picosecond Laser
- Pulsed Laser
- Q-switched Laser
- Raman Laser
- Narrow Linewidth Fiber Laser
- Wavelength Tunable Laser
- Laser Diode
- Laser Module
- Pigtailed Laser
- DFB Laser
- DBR Laser
- SLED Laser
- VCSEL Laser
Cr:BeAlO2 – Laser Crystal – Gain Medium – Customized products
Cr:BeAlO2 crystal products, also known as Alexandrite. It is a broadband tunable laser gain medium with excellent comprehensive performance. It is widely used in dermatology, laser cosmetology, radar technology and other fields. The product has the characteristics of long fluorescence life, high saturation energy density and wide absorption bandwidth. It can be used in medical laser, alexandrite Q laser, laser radar, alexandrite laser treatment instrument products.
Note:
$100 is a deposit, not the final price of the product. Please contact us for price if needed.
Features:
Excellent quality
Good uniformity
Large crystal size
Strong double refraction
High damage threshold
The coating threshold is high
Small section (high saturation flux)
Wavelength coverage: 500nm-3000nm
Low symmetry (orthogonal crystal structure)
Absorption range 380-630 nm, peak at 410 nm and 590 nm
Performance is enhanced at higher temperatures (90-150℃)
Tuning ranges from 700 nm to 860 nm (main laser wavelength 755 nm)
Standard
| Diameter Tolerance | +.000″/-.002″ |
| Clear Aperture | ≥98% |
| Chamfer | 0.005″ ± 0.003″@45° |
| Barreling | 55±5 μinches |
| Perpendicularity | <5′ |
| Parallelism | <30″ |
| Flatness | λ/10@633nm |
| Surface Finish | 10-5 scratch-dig per MIL-O-13830 |
| Wavefront Distortion | Less than λ/2 per inch (measured in 1μm) |
| Facet Coating | Single-layer MgF2 Single wavelength，broad band AR coating |
| Cr Doping | Standard range of reflection: 0.10–0.17 at.% Optimum Cr concentration: 0.83/d at.% (diameter in mm) |
Physical and Chemical Properties
| Chemical Formula | Be(Al1-xCrx)2O4 |
| Crystal Structure | Orthorhombic |
| Lattice Constant | a=5.476Å per ASTM 10-32 b=9.404 Å c=4.427 Å |
| X-ray Densitometer | 3.7g/cm3 |
| Melting Point | 1870 °C |
| Thermal Expansivity | ∥a 5.9×10-6 K-1 ∥b 6.1×10-6 K-1 ∥c 6.7×10-6K -1 |
| Thermal Conductivity | 0.23 W cm-1K-1 |
| Hardness（Vickers） | 2000 kg mm-2 |
| Young’s Modulus | 469 GPa |
| Breaking Stress | 0.457-0.948 GPa |
| Thermal Shock Resistance | 35-74W/cm |
Doping Parameters
| Chromium Concentration Range | 0.01-0.2 at.% |
| Chromium Ion Concentration (0.1 at.%) | 3.51×10cm-3 |
| Refractive Index (750 nm) (biax) | E∥a = 1.7367 E∥b = 1.7421 E∥c = 1.7346 |
| Doping Position Symmetry | 78% mirror (laser active) 22% inversion |
| Nonlinear Refractivity，n2 | ~10-13 ESU |
| Findlay Clay Insertion Loss | <0.3% cm-1 |
| Refractive Index Temperature Change | 8×10-6 K-1 |
Spectrum
