Bonded crystal
In diffusion bonding, two crystals undergo surface treatment and are brought into close contact to form an optical contact at room temperature, then heat-treated to form a permanent bond without another adhesive. Experiments show that undoped crystals bonded as end caps to both ends of a doped crystal of the same host exhibit a small end-face temperature rise, close to coolant temperature. This reduces thermal lensing and end-face distortion associated with thermally induced wavelength shifts of beamsplitter coatings, benefiting laser stability and high-power operation. This thermal-bonding technique can greatly improve laser thermal performance and beam quality while supporting system integration and larger crystals.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dopant Concentration | 0.5-3 % |
| Cross Section | 2×2-10×10 |
| Laser-Crystal Length | 1-30 mm |
Datasheet
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