Er:YAP Crystals


  • Compound Formula: YAlO3
  • Molecular Weight: 163.884
  • Appearance: Translucent crystalline solid
  • Melting Point: 1870 °C
  • Boiling Point: N/A
  • Crystal Phase / Structure: Orthorhombic
  • Product Detail

    Technical parameters

    Yttrium aluminium oxide YAlO3 (YAP) is an attractive laser host for erbium ions due to its natural birefringence combined with good thermal and mechanical properties similar to those of YAG.
    Er:YAP crystals with high doping concentration of Er3+ ions are typically used for lasing at 2,73 microns.
    Low-doped Er:YAP laser crystals are used for of the eye-safe radiation at 1,66 microns by in-band pumping with semiconductor laser diodes at 1,5 microns. The advantage of such a scheme is low thermal load corresponding to low quantum defect.

    Compound Formula YAlO3
    Molecular Weight 163.884
    Appearance Translucent crystalline solid
    Melting Point 1870 °C
    Boiling Point N/A
    Density 5.35 g/cm3
    Crystal Phase / Structure Orthorhombic
    Refractive Index 1.94-1.97 (@ 632.8 nm)
    Specific Heat 0.557 J/g·K
    Thermal Conductivity 11.7 W/m·K (a-axis), 10.0 W/m·K (b-axis), 13.3 W/m·K (c-axis)
    Thermal Expansion 2.32 x 10-6 K-1 (a-axis), 8.08 x 10-6 K-1 (b-axis), 8.7 x 10-6 K-1 (c-axis)
    Exact Mass 163.872 g/mol
    Monoisotopic Mass 163.872 g/mol