YAG+Yb:YAG+YAG

YAG+Yb:YAG+YAG
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YAG+Yb: YAG+YAG bonding crystal is a bonding crystal formed by bonding pure YAG at both ends of Yb: YAG, which can effectively improve the comprehensive performance of Yb: YAG laser.

Yb: YAG the thermal conductivity of YAG is 0.14 w/cm/ ° k@ 25 °C. The thermal conductivity of pure YAG crystal is 14w/m/ K@20 ℃ 10.5W/m/ K@100 ℃. The two ends are bonded to form YAG+Yb: YAG+YAG bonded crystal. They can effectively improve the thermal effect of Yb: YAG crystal, reduce the thermal lens effect formed during laser pumping, improve high quantum efficiency, have a simple crystal spectrum, no excited state absorption, and energy up conversion, realize high concentration doping, good thermal management performance, long absorption band, and can be effectively coupled with the pump wavelength of the diode.

CRYLINK uses surface activation bonding technology, which is a bonding technology at low or normal temperatures. The typical features are surface cleaning and surface activation. Before bonding, the bombardment of fast atoms or ion beams on the bonding surface can effectively increase the bonding strength and achieve high-quality bonding between inorganic materials, metals, and semiconductor materials. Compared with the high-temperature thermal bonding method, the surface activation bonding technology has the following features:

  • Higher bonding force interface
  • Better optical absorption loss
  • Surface shape change control

The impurities on the thermal diffusion bonding surface cannot be removed and are bonded on the bonding surface. Surface-activated bonding technology has the following advantages:

  • Removing various polishing residual components
  • Removing organic pollutants
  • Removing surface oxide layers
  • Breaking chemical bonds of materials
  • Improving activation energy

The produced YAG+Yb: YAG+YAG bonding crystal has high bonding strength, small bonding surface absorption loss (generally less than 20ppm) and small change of bonding surface shape (bonding surface shape <lamda/8). The shape of the bonded crystal can be rod, plate, waveguide or sandwich. Various types of coatings can be provided at both ends of the bonded crystal, such as two end antireflection films ar/ AR@1030 nm Etc. YAG+Yb: YAG+YAG bonded crystals are widely used in holography, interference, optical storage and other fields. They can also be used in high-efficiency and high-power diode pumped solid-state lasers.

Features YAG+Yb: YAG+YAG Bonding Crystal:

  • Effectively improve the thermal effect of Yb: YAG crystal
  • Reduce the thermal lens effect formed during laser pumping
  • Improve high quantum efficiency, simple crystal spectrum, no excited state absorption and energy up conversion
  • High concentration doping can be realized, with good thermal management performance and long absorption band
  • It can be effectively coupled with the pump wavelength of the diode
  • It can improve the stability of the output capacity of the laser and the service life of the laser
  • Improve the service life of the laser

YAG+Yb:YAG+YAG

YAG+Yb:YAG+YAG
MaterialsYAGYb:YAGYAG
Concentrations/1%, 2%,2,5%, 5%,7.5%, 10%
StructureRods/Slabs/Sandwich/Waveguide/
End-face ConfigurationFlat/Convex/Wedge
Side ConfigurationPolish/Fine Ground
Coating availableAR@1030nm/AR@1030nm
others/others

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