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Diffusion Bonding Crystals

Diffusion Bonding CrystalDiffusion Bonding Crystals are crystals consisting of two, three or more parts with different dopant levels or different dopant. Usually, one laser crystal and one or two undoped crystals combined by optical contact and further bonded under high temperature. It can have different wedged structure, Brewster angles, etc. These Diffusion Bonded composite crystals are used to effectively decrease heat effect of Solid-State High-Power Laser:

 

- High damage threshold

- Improve beam quality

- Decrease thermal effect

- Improve efficiency

- Compact size


Diffusion Bonding Crystals specifications:


 Nd:YVO4 Doping

 atm 0.2-3%

 Nd:YAG Doping

 atm 0.5-1.1%

 Wavefront Distortion

 < λ /8 at 633 nm

 Scattering Sites

 invisible, probed with a He-Ne laser

 Orientation Tolerance

 0.5 deg.

 Dimensional Tolerance

 0.1mm

 Surface quality

 10/5 Scratch/Dig per MIL-O-13830B

 Flatness

 λ /10 at 633 nm

 Clear Aperture

 > Central 90%

 Parallelism

 < 10 arc sec.

 Intrinsic Loss

 < 0.1% cm-1

 Coating

 AR or HR coating


Diffusion Bonding Crystal standard products:

 

 Material

 Doping Concentration 

 Aperture (mm)

 Length (mm)

 YAG+Nd:YAG

 0.6~1.2%

 2×2~20×20

 2~200

 YAG+Cr4+:YAG

 0.6~7

 2×2~20×20

 2~50

 Nd:YAG+Cr4+:YAG

 0.6~1.2% / 0.6~7

 2×2~20×20

 2~200

 YAG+Nd:YAG+YAG

 0.6~1.2%

 2×2~20×20

 3~200

 YAG+Nd:YAG+Cr4+:YAG

 0.6~1.2% / 0.6~7

 2×2~20×20

 3~200

 YAG+Nd:YAG+Cr4+:YAG+YAG

 0.6~1.2% / 0.6~7

 2×2~20×20

 5~200

 YAG+Cr4+:YAG+Nd:Ce:YAG+YAG

 0.6~7/Nd:0.9~1.3%,Ce:Nd=1:10

 2×2~10×10

 5~130

 YVO4+Nd:YVO4+YVO4

 0.1~3%

 2×2~10×10

 1~20

 YVO4+Nd:YVO4+YVO4

 0.1~3%

 Dia.2~10

 3~20

 

Diffusion Bonding Crystal standard products