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Yb YAG Ytterbium (Yb) doped Yttrium Aluminium Garnet Laser Crystal, MSE Supplies

Yb YAG Ytterbium (Yb) doped Yttrium Aluminium Garnet Laser Crystal

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Ytterbium Yb:YAG is a very promising laser crystal and is more suitable for diode-pumping than the commonly used Nd-doped YAG crystals. Compared with the traditional Nd:YAG crystal, Yb:YAG crystal has a much wider absorption bandwidth to reduce thermal management of diode lasers. Yb:YAG emits typically at either 1030 nm (strongest line) or 1050 nm (ytterbium-doped gain media). It is often used in powerful and efficient thin-disk lasers. Yb:YAG yttrium aluminium garnet crystal is expected to replace Nd:YAG crystal for high power diode-pumped lasers and other potential applications.

Available Yb concentrations are 1.0, 2.0, 3.0, 5.0, 10.0, and 15.0 (atm%)

Specifications:

  • Crystal structure: Cubic
  • Lattice parameters: 12.01 
  • Melt point: 1970 øC
  • Hardness (mohs): 8.5
  • Density: 4.56 ñ 0.04 g/cm3
  • Specific heat: 0.59 J/g.cm3
  • Young modulus: 3.17x104 Kg/mm2
  • Tensile strength: 0.13~0.26 GPa

Thermal expansion

  • <100> Direction: 8.2x10-6 / øC (0~250 øC )
  • <110> Direction: 7.7x10-6 / øC (0~250 øC )
  • <111> Direction: 7.8x10-6 / øC (0~250 øC )
  • 10.5 W/m/K (@100 øC)

Thermo-optical coefficient: 7.3x10-6 / øC

Publications related to YAG laser crystals

[1] J. E. Geusic et al., Laser oscillations in Nd-doped yttrium aluminum, yttrium gallium and gadolinium garnets , Appl. Phys. Lett. 4 (10), 182 (1964)
[2] D. Y. Shen et al., Highly efficient in-band pumped Er:YAG laser with 60 W of output at 1645 nm , Opt. Lett. 31 (6), 754 (2006)
[3] J. W. Kim et al., F iber-laser-pumped Er:YAG lasers, IEEE Sel. Top. Quantum Electron. 15 (2), 361 (2009)
[4] Li Chaoyang et al., 106.5 W high beam quality diode-side-pumped Nd:YAG laser at 1123 nm, Opt. Express 18 (8), 7923 (2010)
[5] X. len et al., 34 W continuous wave Nd:YAG single crystal fiber laser emitting at 946nm, Appl. Phys. B 104 (1), 1 (2011)
[6] H. C. Lee et al., Diode-pumped continuous-wave eye-safe Nd:YAG laser at 1415nm, Opt. Lett. 37 (7), 1160 (2012)
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