bainaben

  • YAG based Laser crystals
  • Vanadate based Laser crystals
  • YLF based Laser crystals

    • Laser Crystals

    We provide the most common host crystals of YAG(yttrium aluminum garnet), Vanadate and YLF(yttrium lithium flouride) with common dopants Nd3+, Yb3+, Er3+, Ho3+, Cr4+. 
     
    Nd:YAG, Er:YAG, Yb:YAG, Tm:YAG, CTH:YAG, Cr:YAG, Pure YAG
    Nd:YVO4, Nd:GdVO4, Pure YVO4
    Nd:YLF, Ho:YLF, Tm:YLF, Pr:YLF
     
    All these crystals are grown by induction heating Czochralski technique which has proven to be the only acceptable method to produce crystals with sufficient optical clarity and homogeneity for a laser system. Different dopant rates suitable for scientific and industrial applications, are always ready for your order.
     

    Features of laser crystal elements from LNG Optics:

    Rods, Slabs, Disks … Big size and special shaped elements are available
    Faces Paralleled, Wedged, Brewster cut, Radiused …
    Diffusion Bonded crystal elements
    “Cold” Laser Slab modules
    High Laser Damaged Threshold Coatings AR, HR, PR
     

    Reference: Main Properties of the host crystals 

    Chemical Formula
    YAG: Y3Al5O12
    YVO4
    YLF
    Crystal Structure
    Cubic / garnet
    Zircon Tetragonal
    Tetragonal
    Lattice Parameters (Å)
    a=12.01
    a=b=7.12, c=6.29
    a=5.16, c=10.85
    Standard Orientation
    <111>
    a
    a or c
    Transparency Range
    250nm - 5000nm
    400nm - 5000nm
    180 - 6700
    Melting point (°C)
    1950 +/-20
    1810 +/-25
    825
    Density (gram/cm3)
    4.55
    4.22
    3.95
    Specific Heat (J/g/K) @ 300K
    0.59
    0.59
    0.79
    Thermal Conductivity (W/m/K) @ 300K
    12.9 @ 300K
    //c 5.23, ⊥c 5.10
    6.3
    Thermal Expansion Coef. (10-6/K)
    7.8
    //c 11.37, ⊥c 4.43
    αa=13.3, αc=8.3
    Thermal Optic Coef. (10-6/K)
    7.3
    Δne/ΔT=2.9, Δno/ΔT=8.5
    Δne/ΔT=2.0, Δno/ΔT=4.3
    Mohs hardness
    8.5
    4-5
    4-5