Ytterbium Doped Calcium Gadolinium Aluminate (Yb:CALGO) is a promising new laser gain material which possess several important advantages. It has a disordered structure, high thermal conductivity and ultra-wide emission spectrum characteristics, which is conducive to realizing ultrafast laser with high power and narrow pulse width at the same time. When it is pumped at 979 nm under π configuration, we can get broad emission spectra from 994 nm to 1050 nm in σ configuration. This implies a very low quantum defect (down to 1.5%) and gives a good expectation of obtaining ultra-fast pulse.

Advantages:

High absorption coefficient @979 nm

High stimulated emission cross section

Low laser threshold

Extremely low quantum defect

Broad output @994-1050nm

High slope efficiency with diode pumping (up to 55%)

Various Yb-doping concentration

Applications: high-power laser, ultrafast laser and tunable laser.