Laser Crystals: Yb:YAG Crystal
It is more suitable for diode-pumping than the traditional Nd-doped systems. It can be pumped at 0.94 μm laser output. Compared with the commonly used Nd:YAG crystal, Yb:YAG crystal has a much larger absorption bandwidth to reduce thermal management requirements for diode lasers, a longer upper-state lifetime, three to four times lower thermal loading per unit pump power. Yb:YAG crystal is expected to replace Nd:YAG crystal for high power diode-pumped lasers and other potential applications.
Advantages:
- Very low fractional heating, less than 11%
- Very high slope efficiency
- Broad absorption bands, about [email protected]
- No excited-state absorption or up-conversion
- Conveniently pumped by reliable InGaAs diodes at 940nm(or 970nm)
- High thermal conductivity and large mechanical strength
- High optical quality
We offer Yb:YAG specifications
Doping(atm%): | 1.0% ~ 35% |
Orientation: | <111> or <100> crystalline direction |
Wavefront Distortion: | λ/10 per inch @ 632.8 nm |
Dimension Tolerances: | rods with diameter: +0.0/-0.05 mm , Length: ±0.1 mm |
Surface Quality: | 10/5 Scratch/Dig MIL-O-1380A |
Parallelism: | < 10″ |
Perpendicularity: | < 5′ |
Clear Aperture: | > 90% |
Surface Flatness: | < λ/10 @ 632.8 nm |
Chamfer: | < 0.1 mm @ 45o |
Barrel Finish: | 50-80 micro-inch (RMS) , |
Size | Upon customer request |
Coating | AR/HR/PR coating upon customer’s request |
Damage Threshold | 750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz |
Quality Warranty Period | One year under proper use |
Slabs, thread rod, Er:YAG, Nd:YAG, Cr:YAG,Ce:YAG, Tm:YAG,Ho:YAG and other ion doped YAG crystals are also available upon request.
Yb:YAG crystals with diffusion bonded undoped YAG endcaps or Q-switch are also available from us.
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