Yb:YAG Crystal
Ytterbium-doped yttrium aluminum garnet (Yb: YAG) crystal is a promising laser material. It is more suitable for diode-pumped laser systems than other conventional doped YAG. Yb: YAG has a much wider absorption bandwidth, which reduces the thermal control requirements when designing diode lasers. It has a longer high laser energy level lifetime and a lower thermal load per unit pump power for 3-4 times. Yb: YAG crystals are expected to replace Er: YAG crystals for high power diode lasers and other related applications.
Yb:YAG Crystal Physical Properties
|
Material |
Yb:YAG |
|
Crystal Structure |
M3 |
|
Dielectric Constants |
12.01 A |
|
Density(g/cm3) |
4.56±0.04g/cm3 |
|
Melting Point |
1970℃ |
|
Hardness |
8.5 (Mohns) |
|
Specific Heat |
0.59J/[email protected]℃ |
|
Modulus of Elasticty |
310GPa |
|
Young's Modulus |
3.17×104Kg/mm2 |
|
Tensile Strength |
0.13~0.26GPa |
|
Thermal Expansion |
(100) orientation :8.2×10-6/[email protected] 0~250℃ |
|
(110) orientation :7.7×10-6/[email protected]~250℃ |
|
(110) orientation :7.8×10-6/[email protected]~250℃ |
|
Thermal Conductivity |
10.5W/m/[email protected]℃ |
|
Thermo-optical Coeffecient |
7.3×10 -6/°C |
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