Description
CTH:YAG Crystal is an advanced solid-state laser medium renowned for its ability to generate laser emissions at 2100 nm. This crystal is a composite material, doped with Chromium (Cr3+), Thulium (Tm3+), and Holmium (Ho3+), which makes it highly efficient for a variety of demanding applications. The unique triple-doping process enhances the crystal's performance, making it a preferred choice in fields such as medical, meteorological, and military sectors.
The CTH:YAG Crystal is crafted to ensure optimal spectral overlap of pump radiation, whether using a lamp or diode, with the absorption bands of Cr3+ and Tm3+. This characteristic, combined with a highly efficient conversion into the Ho3+ emission band, results in laser architectures that boast high quantum efficiency. This efficiency is critical for developing advanced laser systems that require precise and reliable performance.
In terms of its physical and optical properties, the host material formula for the CTH:YAG Crystal is Y3Al5O12, with a cubic structure. The crystal's refractive index at 2100 nm is 1.8, and it has a Mohs hardness of 8.5, indicating its robustness and durability. The product specifications are meticulously engineered, featuring precise dimension tolerances and high-quality surface finishes to ensure optimal performance in its applications.
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CTH:YAG Laser Crystal for 2100nm Medical and Scientific Applications
Specifications
| Type Of Crystal: | CTH:YAG |
|---|---|
| Crystal Diameter: | 5 mm |
| Crystal Length: | 130 mm |
| AR Coating: | One side, Both sides, Uncoated |
| Ends Type: | Flat or Curved |
| Rod Size: | Diameter 3 mm-5 mm, Length up to 130 mm |
| Standard Coating: | AR/AR 2100 nm |
| Extinction Ratio: | >25 dB |
| Wavefront Distortion: | <λ/2 per inch |
| Clear Aperture: | ≥95% |
| Flatness: | λ/10 |
| Chips: | <0.1 mm |
| Parallelism: | ≤30″ |
| Chamfer: | <0.1 mm x 45° |
| Scratch/Dig: | 10/5 |
| Perpendicularity: | ≤5′ |
| Angle Tolerance: | +/-5° |
| Host Material Formula: | Y3Al5O12 |
| Orientation: | <111> |
| Dimension Tolerance: | Diameter(+0/-0.05)*Length(+1/-0.5) mm |
| Mohs Hardness: | 8.5 |
| Absorption Linewidth: | 4 nm |
| Pump Band: | 400–800 nm |
| Refractive Index: | 1.8 @ 2100 nm |
| Fluorescence Lifetime: | 8.5 ms @ 2100 nm |
| Lasing Wavelength: | 2100 nm |
| Dopant Concentration Ho3+: | ~0.36 at% |
| Dopant Concentration Tm3+: | ~6.0 at% |
| Dopant Concentration Cr3+: | ~1.2 at% |
| Structure: | Cubic |
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Features
- Efficient Solid-State Laser Medium: The CTH:YAG crystal is a triply doped medium with Chromium, Thulium, and Holmium, optimized for 2100 nm generation.
- High Quantum Efficiency: Features a high spectral overlap with pump radiation (lamp or diode) and efficient conversion to the Ho3+ emission band, enabling highly efficient 2-micron laser architectures.
- Medical and Scientific Applications: Ideal for use in medical lasers (such as lithotripsy) and scientific lasers.
- Eye-Safe Wavelength: Operates at a safe wavelength for various applications.
- Room Temperature Operation: Designed to function efficiently at room temperature.
- Flexible Pumping Options: Can be pumped using either flashlamp or diode methods.
- Physical and Optical Properties:
- Host Material Formula: Y3Al5O12
- Structure: Cubic
- Dopant Concentrations: Cr3+ ~1.2 at%, Tm3+ ~6.0 at%, Ho3+ ~0.36 at%
- Lasing Wavelength: 2100 nm
- Fluorescence Lifetime: 8.5 ms @ 2100 nm
- Refractive Index at 2100 nm: 1.8
- Pump Band: 400–800 nm
- Absorption Linewidth: 4 nm
- Mohs Hardness: 8.5
Applications
- Medical Lasers (Lithotripsy)
- Scientific Lasers
Frequently Asked Questions
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