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Diffusion Bonding Crystals are crystals consisting of two, three or more parts with different dopant levels or different dopant. Usually, one laser crystal and one or two undoped crystals combined by optical contact and further bonded under high temperature. It can have different wedged structure, Brewster angles, etc. These Diffusion Bonded composite crystals are used to effectively decrease heat effect of Solid-State High-Power Laser:
- High damage threshold
- Improve beam quality
- Decrease thermal effect
- Improve efficiency
- Compact size
Diffusion Bonding Crystals specifications:
|
Nd:YVO4 Doping |
atm 0.2-3% |
|
Nd:YAG Doping |
atm 0.5-1.1% |
|
Wavefront Distortion |
< λ /8 at 633 nm |
|
Scattering Sites |
invisible, probed with a He-Ne laser |
|
Orientation Tolerance |
0.5 deg. |
|
Dimensional Tolerance |
0.1mm |
|
Surface quality |
10/5 Scratch/Dig per MIL-O-13830B |
|
Flatness |
λ /10 at 633 nm |
|
Clear Aperture |
> Central 90% |
|
Parallelism |
< 10 arc sec. |
|
Intrinsic Loss |
< 0.1% cm-1 |
|
Coating |
AR or HR coating |
Diffusion Bonding Crystal standard products:
|
Material |
Doping Concentration |
Aperture (mm) |
Length (mm) |
|
YAG+Nd:YAG |
0.6~1.2% |
2×2~20×20 |
2~200 |
|
YAG+Cr4+:YAG |
0.6~7 |
2×2~20×20 |
2~50 |
|
Nd:YAG+Cr4+:YAG |
0.6~1.2% / 0.6~7 |
2×2~20×20 |
2~200 |
|
YAG+Nd:YAG+YAG |
0.6~1.2% |
2×2~20×20 |
3~200 |
|
YAG+Nd:YAG+Cr4+:YAG |
0.6~1.2% / 0.6~7 |
2×2~20×20 |
3~200 |
|
YAG+Nd:YAG+Cr4+:YAG+YAG |
0.6~1.2% / 0.6~7 |
2×2~20×20 |
5~200 |
|
YAG+Cr4+:YAG+Nd:Ce:YAG+YAG |
0.6~7/Nd:0.9~1.3%,Ce:Nd=1:10 |
2×2~10×10 |
5~130 |
|
YVO4+Nd:YVO4+YVO4 |
0.1~3% |
2×2~10×10 |
1~20 |
|
YVO4+Nd:YVO4+YVO4 |
0.1~3% |
Dia.2~10 |
3~20 |
