Products

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 Inquire Us  
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    Specifications:

    Surface Area2×2 mm2~ 14×14mm2 Length0.1mm ~ 12mm
    Doping Concentration0.03mol% ~ 0.65mol%Initial Transmission5% ~ 95%
    Flatness< λ/10 @633nmWavefront Distortion< λ/6 @633nm
    Parallelism< 30"Surface Quality10/5 S/D      (MIL-O-13830A)
    AR CoatingR<2% @ 1064nm or 1053nm

     

    Physical and Optical Properties:

    Chemical FormulaCr4+:Y3A15O12 Crystal StructureCubic Garnet
    Density4.56g/cm3 Hardness8.5 Mohs
    Damage Threshold> 500 MW/cm2 Regractive Index1.82 @ 1064nm
     

    Chromium Doped Yttrium Aluminum Garnet (Cr4+:YAG) Crystal is an excellent E-O material for passive 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 chemical stability, durability, UV resistance, 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 does not need any external driving component, which makes it advantageous for compact construction. Cr:YAG crystals operate well at the repetition rate up to 10kHz. 

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