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Tm:YAG

Tm:YAG is an excellent crystal suitable for AlGaAs diode pumping to emit 2μm band laser, and its application in medical, military and meteorological fields has attracted much attention.

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Product Description

Tm:YAG is an excellent crystal suitable for AlGaAs diode pumping to emit 2μm band laser, and its application in medical, military and meteorological fields has attracted much attention.

Main Features

Work in the 2μm eye-safe band range

Effective cross-relaxation between Tm ions and high quantum efficiency

LD pumping efficiency is high

Material Properties

Crystal structure	Cubic system
Lattice constant	12.01 Å
Melting point	1970°C
Moh's hardness	8.5
Density	4.56±0.04g/ cm3
Specific heat	0.59J/ g.cm3 @0-20℃
Elastic Modulus	310GPa
Young's modulus	3.17×10 4 Kg/ mm2
Poisson's ratio	0.3
Tensile strength	0.13~0.26 GPa
Coefficient of thermal expansion	[100] Direction: 8.2×10 -6 /K @0~250℃
	[110] Direction: 7.7×10 -6 /K @0~250℃
	[111] Direction: 7.8×10 -6 /K @0~250℃
Thermal conductivity	14W/m/K @20℃
Thermal conductivity	10.5W/m/K @100℃
Thermo-optic coefficient	dn/dT =7.3×10 -6 /K
Thermal shock resistance	790W/m
Solubility	Insoluble in water, slightly soluble in common acids

Product Parameters

Doping concentration	Tm:0.5~5at%
Orientation	[111], ± 5°
Wavefront distortion	≤ 0.125λ/25 mm @632.8nm
Extinction Ratio	≥ 25dB @632.8nm
Crystal rod size	Diameter: 2~10mm, Length: 3~150mm Can be customized according to customer requirements
Dimensional tolerance	Diameter: +0.00/-0.05mm, Length: ± 0.5mm
Cylindrical processing	Grinding or Polishing
Parallelism of end faces	≤10"
Perpendicularity between end face and rod axis	≤5′
Flatness of end face	≤λ/4@632.8nm
Surface Quality	10-5 (MIL-O-13830A)
Chamfer	0.15±0.05mm