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Diffusion Bonded Crystal
WISOPTIC Capabilities - Diffusion Bonded Crystal
• Various options of dopants and doping ratio
• Various sizes and cuttings (<100>, <110>, <111>)
• Various options of coatings (AR, HR, HT, PR)
• High processing accuracy
• Very competitive price, quick delivery
• Customized design (crystal/endcap size, Nd doping)
The Crystals being bonded could be a laser crystal doped with laser-active ions, and its counterparts without dopants (e.g. YAG + Nd :YAG). The thermal lens effect could substantially decrease by bonding undoped crystal to the ends of the laser gain crystal, because the heat could exit from the two ends rather than just concentrate in laser gain media, thus preventing the potential of thermal fracture and improving the overall stability and beam quality of the laser systems. Bonded parts also could be pardifferent doping compositions (e.g. Nd :YAG + Cr4+:YAG, where Nd :YAG is the gain media and Cr4+:YAG acts as a saturable absorber for passive Q-switching).
WISOPTIC - Standard Bonded Crystal
Material | Doping Ratio | Aperture | Length |
YVO4 + Nd:YVO4 + YVO4 | Nd%=0.1%~3.0 atm% | Ø2~15 mm2 | 0.5~30 mm |
YAG + Nd:YAG + YAG | Nd%=0.1%~1.3 atm% | Ø2~15 mm2 | 0.5~200 mm |
YAG + Nd:YAG + Cr4+:YAG | Nd%=0.1%~1.3 atm% | Ø2~15 mm2 | 0.5~200 mm |
Nd:YAG + Cr4+:YAG | Nd%=0.1%~1.3 atm% | Ø2~15 mm2 | 0.5~200 mm |
| Nd:YAG Doping | 0.4-1.1% |
| Intrinsic Loss | 0.1% cm-1 |
| Scattering Sites | invisible, probed with a He-Ne laser |
| Diameter Tolerance | +0/-0.02mm |
| Length Tolerance | +0.5/-0mm |
| Surface Quality | 10/5 |
| Clear Aperture | >95% |
| Surface Flatness | <λ/10@632.8nm |
| Wavefront Distortion | <λ/10@632.8nm per inch |
| Parallelism | <10 arc seconds |
| Perpendicularity | <5 arc minutes |
| Chamfer | 0.1mm@45° |
| Barrel Finish | ground finish with 400# Grit |
