Neodymium:Yttrium Lithium Fluoride (Nd:YLF) Laser Rods
Neodymium:Yttrium Lithium Fluoride (Nd:YLF) is an alternative media to Nd:YAG for operating in the near IR, lasing at wavelengths - 1047nm and 1053nm.With a pumping wavelength of 808nm Nd:YLF can be both lamp and diode pumped.

Key strengths of Nd:YLF:
  • Lases at - 1047nm and 1053nm
  • Relatively long fluorescence lifetime
  • Yields high pulse energies
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Nd:YLF Laser - Availability
Doping Levels: 1%
Format: Rods, Discs and Slabs
Sizes: Diameters: 10mm max., Lengths: 120mm max.
Nd:YLF Laser Rod Properties
Laser / Optical Properties Units Value
Laser Wavelengths nm 1047, 1053
Emission Linewidth nm
Absorption Band Peak nm 808
Absorption Bandwidth nm 4
Emission Cross-section (@532nm) 10‾²º cm² 12 - 18
Fluorescent Lifetime (1.1% doping) µs 485
Absorption Coefficient @792nm cm‾¹ 3.6 - 10.8
Refractive Index (nD) @ 589nm
Refractive Index (n) @ 1050nm 1.448
Nonlinear Index N2
Abbe Value
Thermal Opical Coeff. (dn/dT) @1060nm 10‾⁶/ºC -4.3
Physical / Thermal Properties Units Value
Chemical Formula LYF:Nd
Melting Point ºC 819
Thermal Expansion Coeff. @20ºC 10‾⁶/ºC 8.3
Thermal Conductivity Coeff. @20ºC W/cm/ºK 0.063
Specific Heat J/g K 0.79
Chemical Durability (@100ºC weigh loss rate distilled water) μg/hr.cm²
Density g/cm³ 3.99
Durability Knoop Hardness kgf/mm²
Mohs Hardness 4 - 5
Young's Modulus 10³ N/mm²
Poisson's Ratio
Damage Threshold (1ns) J/cm²