Ytterbium - Doped : Yttrium Aluminium Garnet Laser Crystals
Yb:YAG shows great promise as a high power laser material. Several applications are being developed in the field of industrial lasers, such as metal cutting and welding. With high quality Yb:YAG now available, additional fields and applications are being explored.
Yb:YAG's advantage is a wide pump band and an excellent emission cross section. It is ideal for diode pumping. The broad absorption band enables Yb:YAG to maintain uninterrupted pump efficiency across the typical thermal shift of diode output. High efficiency means a relatively small dimension Yb:YAG laser crystal will produce high power output. Based on the YAG host crystal, Yb:YAG can be quickly integrated into the laser design process. This combination of properties enables straightforward elegant laser designs, and allows high powered lasers to be manufactured more easily ; Yb:YAG. Laser designers can apply their depth of experience.
We offer excellent quality Yb:YAG laser crystals as both rods and discs that meet your exact specifications. Our experienced staff, can work with you to bring out the superior performance of your high power 1 micron output laser system.
- With a wide pump band and excellent emission cross-section Yb:YAG is an ideal crystal for diode pumping.
- High Output Power 1.029 1mm
- Laser Material for Diode Pumping
- Materials Processing, Welding and Cutting
Optical and Laser Properties
|Laser Action||3 Level Laser||Emission Cross-section||Σ = 2.1 x 10-20 cm2 (± 10%)|
|Emission Lifetime||951 µsec||Refractive Index||1.8 at 632 nm|
|Absorption Bands||930 nm to 945 nm||Chemical Formula||Y3Al5O12:Yb (0.1% to 15% Yb)|
|Output Wavelength||1.029 µm|
Yb:YAG Laser Rod Standard Fabrication Specifications
|Crystal Orientation||<111> within 5°||Available|
|Diameter||3 mm to 10mm||Available|
|Daimeter Tolerance||+0.0 mm/- 0.05 mm||Available|
|Length (plano/plano)||30 mm to 150 mm||Available|
|Length Tolerance||± 0.75 mm||± 0.50 mm|
|Perpendiculairity of End Faces (plano/plano)||5 arc-minutes||2 arc-minutes|
|Parallelism of End Faces (plano/plano)||10 arc-seconds|
|Flatness||0.1 wave maximum||0.10 wave maximum|
|(plano/plano)||over 90% of aperture||over full aperture|
|Surface Finish at 5X||20-10 (scratch & dig)||10-5 (scratch & dig)|
|Barrel Finish||400 grit||Polished approx. 80-50|
|End Face Bevel||0.075 mm to 0.12 mm at 45° angle|
|Chips||No chips allowed on end face of rod; chip having maximum length of 0.3 mm permitted to lie in the area of bevel and barrel surfaces.|
|End Configurations||plano/plano, plano/wedge, wedge/wedge or Brewster cut. Plano ends can be finished flat, concave or convex|
|Coatings||Standard coating is AR at 1.029 µm with R<0.25% each face. Other coatings available.|