Yb:YAP

Yb:YAP
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CRYLINK’s Yb: YAP crystal products, also known as ytterbium aluminate. It is a kind of laser crystal product with excellent comprehensive performance. It is widely used in femtosecond laser, sensor, and neutrino detection. The product has a high anisotropic thermal expansion coefficient, birefringence, and low quantum defects. It can be used in femtosecond lasers, regenerative amplifiers, photoelectric sensors, and neutrino detector products.

  • Infrared
  • Low quantum defects
  • High thermal conductivity
  • Dual-axis orthogonal crystals
  • High-power continuous wave
  • The emission spectrum is approximately 1 μm
  • The high-absorption meson cross-section depends on the orientation of the crystal

Standard

Orientationa-cut
Transparent Aperture>90%
Face Dimension Tolerance+0/-0.1mm
Length Tolerance±0.1mm
Parallelism Error<10 arcsec
Squareness Error<10 arcmin
Protective Groove<0,1 mm @45˚
Surface Quality10-5 S-D
Surface Roughness<λ/10@6328 nm
CoatingAr(R<0.25%) @978 nm+
Laser Damage Threshold>10 J/cm2@1030 nm，10 ns

Technical Characteristics

Absorption Peak Wavelength978 nm
Peak Absorption Cross Section6.6×10-20cm2
Peak Absorption Bandwidth4nm
Laser Wavelength1040 nm
2F5/2Energy Level Lifetime500 μs
Emission Cross Section@1040 nm0.5×10-20cm2
Refractive Index@632.8 nm1.96(∥a)，1.94(∥b)，1.97(∥c)
Crystal StructureOrthogonality
Density5.35g/cm3
Mohs Hardness8.5
Thermal Conductivity11.7 (∥a), 10.0 (∥b), 13.3 (∥c) W/mK
dn/dT7.7×10-6 (∥a) K-1,
11.7×10-6 (∥b) K-1,
8.3×10-6 (∥c) K-1
Thermal Expansion Coefficient2.32×10-6 (∥a) K-1,
8.08×10-6 (∥b) K-1
8.7×10-6 (∥c) K-1
Typical Doping Level<2 at.%

Spectrum

Yb：YAP laser crystal absorption emission curve crylink
Yb：YAP Absorption Emission Curve

References

[1]Characterization and comparison of Yb3+-doped YA1O3 perovskite crystals (Yb:YAP) with Yb3+-doped Y3Al5O12 garnet crystals (Yb:YAG) for laser application
[2]Comparison of fluorescence spectra of Yb：Y3Al5O12 and Yb：YAlO3 single crystals
[3]Comparison of spectroscopic parameters of 15 at% Yb：YAlO3 and 15 at% Yb：Y3Al5O12

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