Ytterbium-Doped Yttrium Aluminum Garnet (Yb: YAG) Laser Crystal
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  • Ytterbium-Doped Yttrium Aluminum Garnet (Yb: YAG) Laser Crystal

Ytterbium-Doped Yttrium Aluminum Garnet (Yb: YAG) Laser Crystal | ALB-Yb-YAG-CR

Item number: ALB-Yb-YAG-CR. Ytterbium-Doped Yttrium Aluminum Garnet (Yb: YAG) Laser Crystal. Formula: Yb: YAG. Shape: Wafer (slice or substrate) boule and crystal form. Quantity: 10pc, 100pc, 1000pc.

Ytterbium-Doped Yttrium Aluminum Garnet (Yb: YAG) Crystal | Laser Crystal Material

Ytterbium doped Yttrium Aluminum Garnet (Yb:Y3Al5O12 or Yb:YAG) is one of the most promising laser-active materials and more suitable for diode-pumping than the traditional Nd-doped crystals. It can be pumped at 0.94 μm and generates 1.03 μm laser output. Compared with the commonly used Nd:YAG crystal, Yb:YAG crystal has a larger absorption bandwidth in order to reduce thermal management requirements for diode lasers, a longer upper-state lifetime, three to four times lower thermal loading per unit pump power. Yb:YAG crystal is expected to replace Nd:YAG crystal for high power diode-pumped lasers and other potential applications, such as, its doubling wavelength is 515 nm very close to that of Ar-ion laser (514 nm), which makes it possible to replace large volume Ar-ion laser.


Physical and Chemical Properties

Chemical formula

Yb3+:Y3Al5O12

Crystal structure

Cubic

Lattice Parameters

12.01A

Melting Point

1970 °C

Density, g/cm3

4.56

Mohs hardness

8.5

Thermal expansion coefficient

7.8 x 10-6 x °K-1 , <111>, 0 - 250 °C 
7.7×10-6/ °C , <110> (0~250 °C ) 
8.2×10-6/ °C , <100> (0~250 °C )

Thermal conductivity at 25°C

0.14 W x cm-1 x °K-1

Loss coefficient at 1064 nm

0.003 cm-1


Laser Properties

Laser Transition

2F5/2 → 2F7/2

Laser Wavelength

1030nm

Photon Energy

1.93×10-19J(@1030nm)

Emission Linewidth

9nm

Emission Cross Section

2.0×10-20cm2

Fluorescence Lifetime

1.2 ms


Spectral Properties

Diode Pump Band

940nm or 970nm

Thermal Optical Coefficient

7.3×10-6/ °C

Index of Refraction

1.82


Standard Specifications

Dopant concentration, at.%

0.5-30%

orientation:

<111>within 5°

Flatness

< λ/10

Parallelism

≤ 10"

Perpendicularity

≤ 5 ′

Surface Quality

10-5(MIL-O-13830A)

Optical Quality:

Interference fringes ≤ 0.125/inch, Extinction ration ≥ 30dB

Size:

Diameter:2 ~ 20mm,Length:5 ~ 150mm  (Upon request of customer)

Dimensional tolerances 

Diameter:+0.00"/-0.05"mm; Length: ± 0.02" ; Chamfer: 0.07+0.005/-0.00" at 45°

AR Coating Reflectivity 

≤ 0.2% (@1030nm)

Download MSDS

ALB-Yb-YAG-CR

Data sheet

Item Number
ALB-Yb-YAG-CR
Formula
Yb
Size
custom-made
Shape
Wafer (slice or substrate) boule and crystal form

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