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Cr4+:YAG Crystals

  • Good transmission at 0.8~1.2μm
  • Popular for Nd lasers and Yb lasers
  • Excellent chemical, thermal and mechanical properties
  • High damage threshold
  • Repetition frequency up to 10kHz
  • Stocked and custom crystals available
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Dimensions Range      
Surface Area 2×2 mm2~ 14×14mm2 Length 0.1mm ~ 12mm
Doping Concentration 0.03mol% ~ 0.65mol% Initial Transmission 5% ~ 95%
Flatness < λ/10 @633nm Wavefront Distortion < λ/6 @633nm
Parallelism < 30" Surface Quality 10/5 S/D (MIL-O-13830A)
AR Coating R<2% @ 1064nm or 1053nm


Physical and Optical Properties:

Chemical Formula Cr4+:Y3A15O12 Crystal Structure Cubic Garnet
Density 4.56g/cm3 Hardness 8.5 Mohs
Damage Threshold > 500 MW/cm2 Regractive Index 1.82 @ 1064nm

Chromium Doped Yttrium Aluminum Garnet (Cr4+:YAG) Crystal is excellent E-O material for passively Q-switching diode pumped or lamp-pumped Nd:YAG, Nd:YLF, Nd:YVO4 and other Nd (or Yb) doped lasers at 0.8~1.2µm. With the advantages of chemically stable, durable, UV resistant, good thermal conductivity, high damage threshold ( >500 MW/cm2) and easy operation, Cr4+:YAG is edging out traditional materials, such as LiF, organic Dye and color centers. Cr:YAG is simple to use and no need of external driving system, which makes it compact in size. Cr:YAG crystals operates well at the repetition frequency rate up to 10kHz. 

Hangzhou Shalom EO offers high precision polished Cr:YAG crystals with maximum aperture of 14x14mm and maximum length of 12mm, and broad initial transmission range 5% to 95%. Both stocked and custom crystals are available. 

Diffusion Bonding Laser Crystals

Diffusion Bonding Laser Crystals

  • Decreasing thermal lens effect
  • Increasing efficiency and damage threshold
  • Improving beam quality
  • Compact size