Glass+Er,Yb:glass+Glass

Glass+Er,Yb:glass+Glass
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Glass+Er, Yb:glass+Glass bonding crystal is a bonding crystal formed by bonding pure glass at both ends of Er and Yb: glass. It can effectively improve the comprehensive performance of Er and Yb: glass lasers.

Glass+Er, Yb:glass+Glass bonded crystals are formed by bonding at both ends. They have the following functions:

  • Improve the thermal effect of Er, Yb: glass crystals
  • Reduce the thermal lens effect formed during laser pumping
  • Improve the beam quality of the laser
  • Improve the output efficiency of 1535 nm laser
  • Improve the output energy stability of the laser
  • Improve the service life of the laser

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 a higher bonding force interface, better optical absorption loss and surface shape change control.

In contrast, 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:

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

The produced Glass+Er, Yb:glass+Glass 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 a rod, plate, waveguide, or sandwich. Various coatings can be provided at both ends of the bonded crystal, such as two end antireflection films AR@1535 nm, or s1: HR@1535 nm+AR @940 nm, S2: AR@1535+HR @940 nm, etc. Glass+Er, Yb:glass+Glass bonded crystals are widely used in rangefinder, radar, target recognition and other fields.

Features of Glass+Er, Yb:glass+Glass Bonding Crystal:

  • It can effectively improve the thermal effect of Er, Yb: glass crystals
  • Reduce the thermal lens effect formed during laser pumping
  • Absorption bandwidth, long fluorescence life, high optical quality and high slope efficiency
  • Improve the beam quality of the laser and improve the output efficiency of the 1535 nm laser
  • It can improve the stability of the output capacity of the laser and the service life of the laser

Glass+Er,Yb:glass+Glass

Glass+Er,Yb:glass+Glass
MaterialsGlassEr,Yb:glassGlass
Concentrations/0.5%\1.0%\1.5%/
StructureRods/Slabs/Sandwich/Waveguide/
End-face ConfigurationFlat/Convex/Wedge
Side ConfigurationPolish/Fine Ground
Coating availableAR@1535nm/AR@1535nm
HR@1535nm+AR@940nm/AR@1535+HR@940nm
others/others

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