Cr4+:YAG Crystals
Main Advantages: Wide Wavelength Range, Efficient Pump Absorption, High Optical Performance, Stability and Reliability, Cost-Effectiveness
Applications: Medical Lasers, Scientific Research, Industrial Lasers, Laser Radar, Telecommunications, Pulsed Laser Systems, Military and Defense, Laser Pumping
Cr4+:YAG crystals are crucial laser materials where Cr4+ ions are doped into the YAG lattice. They demonstrate outstanding optical performance and stability, making them particularly well-suited for infrared laser applications. These crystals efficiently absorb pump energy and produce stable laser output, predominantly in the wavelength range of 1.4 to 2.1 micrometers. As a result, they find extensive applications in medical, scientific research, and industrial fields, encompassing laser devices, laser radar, and materials processing.
Specifications:
| Surface Area | 2×2 mm2~ 14×14mm2 |
| Length | 0.1mm ~ 12mm |
| Doping Concentration | 0.03mol% ~ 0.65mol% |
| Initial Transmission | 5% ~ 95% |
| Flatness | < λ/10 @633nm |
| Wavefront Distortion | < λ/6 @633nm |
| Parallelism | < 30″ |
| Surface Quality | 10/5 S/D (MIL-O-13830A) |
| AR Coating | R<2% @ 1064nm or 1053nm |
| Chemical Formula | Cr4+:Y3A15O12 |
| Density | 4.56g/cm3 |
| Damage Threshold | > 500 MW/cm2 |
| Hardness | 8.5 Mohs |
| Regractive Index | 1.82 @ 1064nm |
Main Advantages:
- Wide Wavelength Range: Cr4+: YAG crystals can emit laser light over a broad wavelength range, typically from about 1.4 to 2.1 micrometers in the infrared spectrum. This versatility makes them suitable for various applications where different wavelengths are required.
- Efficient Pump Absorption: They efficiently absorb pump energy, which leads to effective conversion of input energy into laser output. This efficiency is crucial for achieving high-powered and stable laser emissions.
- High Optical Performance: Cr4+:YAG crystals exhibit excellent optical properties, such as high transparency and minimal loss, ensuring high-quality laser beams with minimal distortion.
- Stability and Reliability: These crystals are chemically and thermally stable, ensuring long-term reliability in demanding laser applications. They can withstand high-power densities and operate consistently over extended periods.
- Cost-Effectiveness: They offer a cost-effective solution for generating infrared laser pulses compared to some other laser materials, making them attractive for commercial and industrial applications.
Applications:
- Medical Lasers: Used in dermatology and ophthalmology for procedures such as skin rejuvenation, tattoo removal, and correcting eye conditions like glaucoma.
- Scientific Research: Employed in spectroscopy and microscopy for studying molecular structures and dynamics due to their ability to emit in the infrared range (1.4 to 2.1 micrometers).
- Industrial Lasers: Used in materials processing applications such as welding, cutting, and marking where precise and stable infrared laser beams are required for efficient operations.
- Laser Radar: Utilized in defense and aerospace industries for LIDAR (Light Detection and Ranging) systems to accurately measure distances and map terrain.
- Telecommunications: Used in fiber optics for amplifying signals in telecommunication networks, particularly in the infrared spectrum.
- Pulsed Laser Systems: Applied in ultrafast pulsed laser systems for generating short pulses with high peak powers, beneficial in scientific experiments and industrial applications requiring precise material processing.
- Military and Defense: Used in military applications for targeting, range finding, and laser designation due to their stable and reliable performance under harsh conditions.
- Laser Pumping: As a medium for pumping other laser materials due to their efficient absorption of pump energy and ability to generate high-energy pulses.
