CTH:YAG is a 2-micron laser crystal with high pumping efficiency. The laser emission wavelength is 2080nm. It can be pumped by flashlights or laser diodes. CTH:YAG is widely used in medical laser, laser ranging and other applications.
High pumping efficiency
Operating at room temperature
Suitable for lamp pumping or diode pumping
The operating wavelength is relatively safe for human eyes
SPECIFICATIONS | |
Concentration | Ho:0.3%~0.4at%,Cr:0.3%~1.2%,Tm:5%~6% |
Crystal orientation | <111>±5° |
Dimensions | Diameter:3mm-6mm,Length:50-120mm(Customized available) |
Dimension Tolerance | Φ:+0/0.04mm,L:+0.5/-0mm |
Perpendicularity | ≤5′ |
Parallelism | ≤10” |
Chamfer | 0.15±0.05mm |
Surface Quality | 10/5(MIL-PRF-13830B) |
Barrel | Fine Ground, Polishing, Grooving |
Flatness | ≤λ/10@623.8nm |
Wavefront Distortion | ≤0.125λ/25mm@1064nm |
Extinction Ratio | ≥25dB |
Anti-reflection Coating | R≤0.25%@2094nm |
Damage Threshold | ≥1GW/cm2@1064nm,10ns,10Hz |
OPTICAL PROPERTIES | |||
Laser Transition | 5I7 →5I8 | ||
Wavelength | 2.094um | ||
Emission Line-width | 4nm | ||
Emission Cross Section | 7×10-525px2 | ||
Fluorescence Lifetime | 8.5ms | ||
Pump Absorption Bandwidth | 781nm | ||
Main Pump Wavelength Range | 400~800nm | ||
PHYSICAL AND CHEMICAL PROPERTIES | |||
Crystal Structure | Cubic | ||
Melting Point | 1970°C | ||
Density | 4.56±0.04g/cm3 | ||
Mohs Hardness | 8.5 | ||
Poisson’s Ratio | 0.3 | ||
Tensile Strength | 0.13~0.26GPa | ||
Thermal Optical Coefficient | 7.3×10-6/K | ||
Refractive Index | 1.80@2094nm | ||