Diffusion Bonding Crystal

Diffusion Bonding Crystals (composite laser rods) consist of one laser crystal and one or two undoped material. They’re combined by optical contact method and further bonded under high temperature. Diffusion Bonding Crystals can effectively decrease thermal lensing effect considerably, therefore it’s very suitable for high power laser applications.

Advantages

1 ) High damage threshold

2 ) Improve beam quality

3 ) Decrease thermal effect

4 ) Improve efficiency

5 ) Compact size

Specifications

 Material

Doping Concentration

Aperture (mm)

Length (mm)

Nd:YAG+Cr4+:YAG

0.1-3%/0.6-7.0

2×2-20×20

0.5-200

YAG+Nd:YAG

0.1-3%

2×2-20×20

0.5-200

YAG+Nd:YAG+YAG

0.1-3%

2×2-20×20

0.5-200

YAG+Nd:YAG+Cr4+:YAG

0.1-3%/0.6-7.0

2×2-20×20

0.5-200

 YVO4+Nd:YVO4

0.1-3%

2×2-20×20

0.5-200

YVO4+Nd:YVO4+YVO4

0.1-3%

2×2-20×20

0.5-200

 YVO4+Nd:YVO4+YVO4

0.1-3%

Dia2-15

0.5-200

Diffusion Bonding Crystals Capabilities

Nd:YVO4 Doping

0.1-3%

Nd:YAG Doping 

0.1-3%

Wavefront Distortion

< λ /8 at 633 nm 

Orientation 

±0.5deg

Scratch/Dig

10/5@MIL-O-13830A

Flatness

λ /10 at 633 nm 

Clear Aperture

> Central 90% 

Parallelism 

< 10 arc seconds

Intrinsic Loss

< 0.1% cm -1 

Coating: 

AR or HR coating