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Diffusion-bonding Crystal
Diffusion Bonded Nd:YAG + YAG, Nd:YAG + Cr4+:YAG, Nd:YVO4 + YVO4 laser crystals are used for compact laser aplications. These Diffusion Bonded Crystals are combined by optical contact method and further bonded under high temperature. Diffusion Bonded Crystal helps to decrease thermal lensing effect considerably.
Capability of Diffusion Bonded Laser Crystal
1) Diameter: 3 ~ 14 mm
2) Length: 1 ~ 160 mm
3) Anti-reflection Coating: R<0.1 @ 1064 nm
High transmission Coating: T>95% @ 808 nm
High reflection Coating: R>99.8% @ 1064 nm
Diffusion Bonded Laser Crystal Specification
1) Orientation: +/-0.5°
2) Wavefront Distortion: λ/8 per inch
3) Surface quality: better than 20/10 Scratch-Dig
4) Parallelism: 10 arc seconds
5) Perpendicularity: 5 arc minutes
6) Surface flatness: λ/10 at 632.8 nm
7) Clear aperture: Central 95%
8) Chamfer: 0.15mm @45°
9) Damage threshold: over 15J/cm² (without coating), over 700 MW/cm² (coating)