Chromium-doped Yttrium Aluminum Garnet Cr-YAG Crystal
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China
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since 2015
Description
Cr:YAG Crystals: Revolutionizing Laser Technology Cr:YAG (Chromium-doped Yttrium Aluminum Garnet) crystals are at the forefront of laser technology, offering a robust and efficient solution for passive Q-switching in Nd-doped lasers. These crystals are renowned for their large absorption cross-section in the 0.9-1.2 micrometer spectral region, making them an attractive choice for a variety of laser applications.
The use of Cr:YAG as a passive Q-switch results in solid-state, compact, and cost-effective laser devices. In addition to their efficiency, Cr:YAG crystals boast a high damage threshold and excellent thermal conductivity. Their chemical stability and resistance to ultraviolet radiation make them a durable option for both industrial and scientific applications. The ease of machinability further enhances the versatility of Cr:YAG, allowing it to replace more traditional Q-switching materials such as lithium fluoride and organic dyes. Typically, the dopant levels in Cr:YAG range between 0.5 and 3 percent molar, optimizing their performance in laser systems.
Beyond passive Q-switching, Cr:YAG crystals serve as a laser gain medium, producing tunable lasers with outputs adjustable between 1350 and 1550 nm. When pumped at 1064 nm by an Nd:YAG laser, Cr:YAG can generate ultrashort pulses, reaching the femtosecond range. This capability opens up new possibilities in precision applications, where ultrashort pulse durations are crucial. As laser technology continues to advance, Cr:YAG remains a pivotal component, driving innovation and efficiency in the field.
Chromium-doped Yttrium Aluminum Garnet Cr-YAG Crystal
Specifications |
|
|---|---|
| Type Of Crystal: | Cr:YAG |
| AR Coating: | Both sides |
| Orientation: | [111] or [100] within 5° |
| Scratch & Dig: | 40/20 ~ 20/10 |
| Flatness: | λ/8 |
| Parallelism: | 30 arc Sec |
| Coating: | AR/AR @1064nm, R<0.25% |
| Absorption Cross Section Spectral Region: | 0.9-1.2 micrometer |
| Dopant Levels: | 0.5 and 3 percent (molar) |
| Operational Wavelengths For Q-switching: | 1000 and 1200 nm |
| Laser Output Wavelengths: | 1350 and 1550 nm |
| Pumping Wavelength For Ultrashort Pulses: | 1064 nm |
Features
- Orientation: Available in [111] or [100] within 5°
- Scratch & Dig: 40/20 to 20/10, ensuring high optical quality
- Flatness: λ/8, providing precision and performance
- Parallelism: 30 arc seconds, ensuring accurate alignment
- Coating: AR/AR at 1064 nm, R<0.25%, optimized for laser applications
- Wide Absorption Range: Cr4+:YAG offers a large absorption cross-section in the 0.9-1.2 micrometer spectral region, ideal for passive Q-switching in Nd-doped lasers.
- High Damage Threshold: Durable and reliable under high-power conditions
- Good Thermal Conductivity: Efficient heat dissipation for stable performance
- Chemical Stability: Resistant to ultraviolet radiation and easy to machine
- Versatile Applications: Suitable for passive Q-switching of lasers operating at wavelengths between 1000 and 1200 nm, such as Nd:YAG, Nd:YLF, Nd:YVO4, and Yb:YAG.
- Laser Gain Medium: Can also be used as a laser gain medium, producing tunable lasers with outputs adjustable between 1350 and 1550 nm.
- Ultrashort Pulse Generation: Capable of generating ultrashort pulses in the femtoseconds range when pumped at 1064 nm by an Nd:YAG laser.
Applications
- Passive Q-Switching: Ideal for Nd:YAG, Nd:YLF, Nd:YVO4, and Yb:YAG lasers for producing pulsed outputs.
- Femtosecond Lasers: Generates ultrashort pulses when pumped at 1064 nm.
- Tunable Lasers: Functions as a gain medium for 1350–1550 nm wavelength outputs.
- Compact Laser Designs: Enables solid-state, cost-effective, and robust laser systems.
- Replacement for Traditional Q-Switching Materials: Replaces lithium fluoride and organic dyes in modern laser systems.
Frequently Asked Questions
Cr:YAG crystal is used as a passive Q-switch for Nd-doped lasers and as a laser gain medium itself.
Cr:YAG crystal provides a large absorption cross section in the 0.9-1.2 micrometer spectral region.
Cr:YAG crystal has high damage threshold, good thermal conductivity, good chemical stability, resists ultraviolet radiation, and is easily machinable.
The dopant levels used in Cr:YAG crystal range between 0.5 and 3 percent (molar).
Cr:YAG crystal can be used with lasers that operate at wavelengths between 1000 and 1200 nm, such as those based on Nd:YAG, Nd:YLF, Nd:YVO4, and Yb:YAG.