- 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,Er:YSGG – Laser Crystal – Gain Medium – Customized Products
In the Er,Cr: YSGG crystal, Cr3+ replaces the Ga3+ or Sc3+， and Y3+ is replaced by Er3+, the crystal has the advantages of large size, low optical damage, high optical quality, and low lasing threshold. Flashlamp or laser diode is often used to pump the laser crystal, 970 nm laser diode is regarded as the first choice to realize 2790 nm laser pumping of Er,Cr: YSGG, which can excite the Er3+ to his lasing upper level directly with high efficiency and low energy cost. Nowadays, various method have been adopted to switch Q (such as acousto-optic, electro-optic, FTIR) to realize pulse laser output. Owing to the specificity of lasing wavelength, this kind of lasers are widely used in medical applications, scientific investigations, material processing, military and so on.
Note:
$100 is a deposit, not the final price of the product. Please contact us for price if needed.
Features
Good crystal quality
Super mechanical properties
Low pump threshold
High slope efficiency
Working at medium frequency
Material Specifications
| Crystal Structure | Cubic |
| Chemical Formula | Y2.93Sc1.43Ga3.64O12 |
| Lattice Constant | 12.42 Å |
| Concentration | 30 at % (3.7 x 1021 cm<-3 , dodecahedron Er3+) |
| 2 at % (1.7 x 1020 cm-3 , octahedral Cr3+) | |
| Wavefront Distortion（Rod length per inch） | 2-Jan |
| Surface Finish | 10–5 S–D |
| Perpendicularity | 5‘ |
| Parallelism | 30“ |
| Precise Finish | 55 microinch ± 5 microinch |
| Chamfer | 45 deg ±5 deg |
| Length Tolerance | +0.040 / -0.000 in |
| Diameter Tolerance | +0.0000 / -0.0020 in |
Physical and Chemical Properties
| Thermal Conductivity（W / mK） | 8 |
| Thermal Coefficient of Expansion | 8.1×10-6/K |
| Thermal-optical Coefficient（dn / dT）（10-6/ K） | 12.3 |
| Mohs Hardness | 8 |
| Density | 5.67g/cm3（Cr&Er doping） |
| Size（DxL），mm | From 3 x 30 to 12.7 x 127.0 |
| Orientation | <001>, <111> |
Optical and Spectral Properties
| Refractive Index | 1.92 at 1000 nm |
| Fluorescence Lifetime | 1400 μs |
| Emission Cross-section | 5.2 x 10-21 cm2 |
| Laser Wavelength | 2.791 µm |
Absorption and Emission Spectra
