Cr:YAG
Cr4+:YAG (Y3Al5O12) is an ideal material for passive Q-switching of Nd:YAG and other Nd and Yb doped lasers in the wavelength range of 0.8 to 1.2 mm. One of the remarkable features of Cr4+:YAG is high damage threshold of 500-1000 MW/cm2. Passive Q-Switching is preferred for simplicity of manufacturing and operation, low cost and reduced system size and weight.
Physical and Chemical Properties:
Please view Laser crystals physical Properities (dpf format)
The preliminary experiments of Cr:YAG showed that the pulse width of passively Q-switched lasers could be as short as 9 ns for diode pumped Nd:YAG lasers and repetition as high as 10kHz for diode pumped Nd:YVO4 lasers. Furthermore, an efficient green output @ 532 nm, and UV output @ 355 nm and 266 nm 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.
Specifications:
T0 | From 5% to 98% |
Dimension tolerance | (W ± 0.1 mm) x (H ± 0.1 mm) |
Transmitting wavefront distortion: | l/8 @ 633 nm |
Clear aperture: | > 90% central area |
Flatness: | l/8 @ 633 nm |
Scratch/Dig code: | 10/5 to MIL-O-13830A |
Parallelism: | better than 20 arc seconds |
Perpendicularity: | 5 arc minutes |
Angle tolerance: | Dq < ±0.5°, Df < ± 0.5° |
AR coating: | R< 0.2% at 1064nm |
Quality Warranty Period: | one year under proper use. |
Note: When ordering Cr4+:YAG crystal, please specify the aperture, initial transmission(To) and coatings.