Nd:YAG+Cr:YAG

Nd:YAG+Cr:YAG
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Nd:YAG+Cr: YAG bonded crystal, which is formed by bonding Cr: YAG at one end of Nd: YAG, can effectively improve the comprehensive performance of Nd: YAG and Cr: YAG lasers.

The thermal conductivity of Nd: YAG is 14w/m/k, 20 º C, 10.5w/m/k, 100 º C, and the thermal conductivity of Cr:YAG crystal is 12.13w/m/k. The Nd:YAG+Cr: YAG bonded crystal is formed by bonding at both ends, which can effectively improve the thermal effect of Nd:YAG crystal, reduce the thermal lens effect formed during laser pumping, improve the beam quality of laser, improve the damage threshold, reduce thermal effect, improve efficiency, improve the stability of laser output capacity, and improve the service life of laser. The molecules on the surface of precision optical processing diffuse and fuse with each other to form a more stable chemical bond, so as to achieve a real sense of integration, which can make the laser device miniaturized and integrated, and improve the thermal performance of the laser rod at the same time.

CRYLINK uses surface activation bonding technology, which is a bonding technology at low or normal temperature. 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 higher bonding force interface, better optical absorption loss and surface shape change control, while the impurities on the thermal diffusion bonding surface cannot be removed and are bonded on the bonding surface. Surface activated bonding technology has the advantages of removing various polishing residual components, removing organic pollutants, removing surface oxide layer, breaking chemical bonds of materials, and improving activation energy.

The produced Nd:YAG+Cr: YAG bonded crystals have 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@1064nm+808nm , or S1: HR@1064nm & AR@808nm ，S2: PR@1064nm & HR@808nm Etc. Nd:YAG+Cr: YAG bonded crystals are widely used in biophysics, medicine, military, machinery, scientific research and construction.

Features of Nd:YAG+Cr: YAG Bonded Crystal:

  • Effectively improve the thermal effect of nd:yag crystal
  • Reduce the thermal lens effect formed during laser pumping;
  • Improve the beam quality of laser;
  • Improve the damage threshold and reduce the thermal effect;
  • Improve efficiency and stability of laser output capacity;
  • Improve the service life of the laser

Nd:YAG+Cr:YAG

Nd:YAG+Cr:YAG
MaterialsNd:YAGCr:YAG
Concentrations0.6%\1.0%\1.1%/
Initial Transmission/30～99%
StructureRods/Slabs/Sandwich/Waveguide/
End-face ConfigurationFlat/Convex/Wedge
Side ConfigurationPolish/Fine Ground
Coating availableAR@1064nm+808nmAR@1064nm+808nm
HR@1064nm&AR@808nmPR@1064nm&HR@808nm
othersothers

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