Yb:YAG Crystal | Laser Crystal For 1030nm Solid-State Laser | Crystal Manufacture

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Yb: YAG is a laser crystal which is doped with trivalent ytterbium ions in yttrium aluminum garnet crystal and can emits 1030 nm near-infrared laser. Yb: YAG crystal has characters of high quantum efficiency, no excited state absorption and up-conversion, high concentration tolerance, long fluorescence lifetime, wide absorption band and broad emission range and robust optical, mechanical and thermal properties etc., which makes it have great potential application in high efficiency, high power diode-pumped solid-state lasers.

Parameter

Material and Specifications

Materials	Yb:YAG
Yb Concentration Tolerance (atm%)	0.5, 1, 2, 3, 5, 7.5 , 10, 15, 20, 25%
Orientation	[001] or [110] or [111] <±0.5°
Parallelism	10〞
Perpendicularity	5ˊ
Surface Quality	10-5(MIL-O-13830A)
Wavefront Distortion	λ/4@632nm
Surface Flatness	λ/8@632nm
Clear Aperture	>95%
Chamfer	<0.1×45°
Thickness/Diameter Tolerance	±0.05 mm
Maximum Dimensions	dia 50×100 mm
Coatings	AR/AR@940+1030；HR@940+AR1030

Physical and Chemical Properties

Crystal Structure	cubic – la3d
Lattice Constants	12.01 Å
Density	4.56±0.04 g/cm³
Melting Point	1970 °C
Thermal Conductivity /(W·m-1·K-1@25°C)	λ/4@632nm
Specific Heat/ (J·g^-1·K^-1)	0.59
Thermal Optical Coefficient(d_n/d_T)	7.3×10^-6/℃
Thermal Expansion /（10^-6·K^-1@25°C ）	8.2 [100] 7.7 [110] 7.8 [111]
Hardness (Mohs)	8.5
Young`s Modulus /GPa	317
Shear Modulus /Gpa	54.66
Extinction Ratio	25 dB
Tensile Strength/Gpa	0.13-0.26
Solubility	Water: Insoluble; Common Acides: Slightly
Poisson Ratio	0.25

Optical and Spectral Properties

Laser Transition	²F_5/2→²F_7/2
Laser Wavelength	1030 nm
Photon Energy	1.93×10^-19J(@1030 nm)
Pump Absorption Band Width	8 nm
Loss Coefficient	0.003 cm^-1
Diode Pump Band	940 nm or 970 nm
Emission Cross Section	2.0×10^-20 cm²
Fluorescence Lifetime	1.2 ms
Emission Linewidth	9 nm
Refractive Index @1.030 μm	1.82
Thermal Optical Coefficient	9× 10^-6/℃