Nd:YAG+V:YAG

Nd:YAG+V:YAG
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Nd:YAG+V: YAG bonded crystal, the bonded crystal formed by bonding V: YAG at the end of Nd: YAG, can effectively improve the comprehensive performance of Nd: YAG lasers.

The thermal conductivity of Nd: YAG is 14w/m/k, 20 º C, 10.5w/m/k, 100 º C, and V: YAG crystal thermal conductivity is 17w/m/k. The two ends are bonded to form an Nd:YAG+V: YAG bonded crystal. The output characteristics of the passive Q-switched microchip laser with an output wavelength of 1338 nm. Under continuous pumping, the maximum output power is 0.73 W. Currently, a stable Q-switched pulse output with a pulse width of 139 ns is obtained.

A passively mode-locked Q-switched laser with a maximum output power of 1.01 W and a corresponding pulse width of 80 ns is obtained under quasi-continuous pumping. The single pulse width of the mode-locked series is about 70 PS. Nd:YAG+V: YAG bonded crystal is beneficial to obtain high-power and compact 1338 nm pulsed laser output. At the same time, quasi-continuous pumping can effectively reduce the thermal effect of laser crystal and obtain higher power laser output.

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 of removing various polishing residual components, removing organic pollutants, removing surface oxide layers, breaking chemical bonds of materials, and improving activation energy.

The produced Nd:YAG+V: YAG bonded crystals have high bonding strength, small bonding surface absorption loss (generally less than 20ppm), and a small change of bonding surface shape (bonding surface shape <lamda/8). 5: The initial transmission of YAG is 30 ~ 99%. The shape of the bonded crystal can be a 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@1319 nm+808 nm, or S1: HR@1319 nm & AR@808 nm, S2: PR@1319 nm & HR@808 nm Etc. Nd:YAG+V: YAG bonded crystals are widely used in biophysics, medicine, military, machinery, scientific research, and construction.

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

  • Effectively improve the thermal effect of nd:yag crystal
  • Reducing thermal lens effect during laser pumping
  • Improving laser beam quality
  • Get higher power laser output

Nd:YAG+V:YAG

Nd:YAG+V:YAG
MaterialsNd:YAGV: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@1319nm+808nmAR@1319nm+808nm
HR@1319nm&AR@808nmPR@1319nm&HR@808nm
othersothers

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