ANHUI CRYSTRO CRYSTAL MATERIALS Co., Ltd.
ANHUI CRYSTRO CRYSTAL MATERIALS CO., LTD. INNOVATOR FOR MAGNETO OPTICAL CRYSTALS
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Cr4+ Yag laser crystal rod (Yttrium Aluminum Garnet doped with Chromium)
Cr 4+ :YAG is one of passive Q switch crystal in our company.
Cr 4+ :YAG showed that the pulse width of passively Q-switched lasers could be as short as 5ns for diode pumped Nd:YAG lasers and
repetition as high as 10kHz for diode pumped Nd:YVO4 lasers. Furthermore, an efficient green output @ 532nm, and UV output @ 355nm and 266nm were generated, after a subsequent intracavity SHG in KTP or LBO, THG and 4HG in LBO and BBO for diode pumped and passive Q-switched Nd:YAG and Nd:YVO4 lasers.
Crystro has perfect automatic production equipment, the current products are mainly concentrated in the YAG, MgAl2O4,TGG, TSAG,GGG, LGS, Ce:GAGG , Ce:YAG andCe: LuYAG production. the application of advanced process technology of manufacturing, reducing energy consumption to ensure sustainable development field of research and development.
Crystro's Cr4+:YAG has advantages:
High chemical stability and reliability and High damage threshold (>500MW/cm2) and Long lifetime and good thermal conductivity
Main Properties:
| Orientation | <100>within5°or<110>within5° |
| Initial absorption coefficient | 0.1~8.5cm@1064nm |
| Initial transmittance | 3%~98% |
| Size | Diameter: 3~20mm, H×W:3×3~20×20mm Upon request of the customer |
| Parallelism | ≤ 20" |
| Perpendicularity | ≤ 15 ′ |
| Flatness | < λ/10 |
| Surface Quality | 20/10 (MIL-O-13830A) |
| Wavelength | 950 nm ~ 1200nm |
| AR Coating Reflectivity | ≤ 0.2% (@1064nm) |
| Damage threshold | ≥ 500MW/cm2 10ns 1Hz at 1064nm |
| Dimensional tolerances | Diameter:±0.05mm, length: ± 0.5mm Chamfer: <0.1 mm @ 45º |
| Chemical Formula | Cr4+: Y3Al5O12 |
| Crystal Structure | Cubic |
| Hardness | 8.5 |
| Melting Point | 1970 °C |
| Density, g/cm3 | 4.55 |
| Coefficient of Thermal Conductivity @ 25°C, W x cm-1x °K-1 | 0.14 |
| Coefficient of Thermal Expansion | 8.2 x 10-6/ ℃<100> |
| Young's Modulus | 7.7x 106<100> |
| Thermal Shock Resistance | 790 Wm-1 |
