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Yb: CALGO crystal for high-power and ultra short laser pulses

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Yb doped CaGdAlO4 crystal (Yb: CALGO) exhibits excellent performance in producing high-power and ultra short laser pulses. It has a wide and smooth transmission bandwidth and can generate very short pulses (<100 fs). In addition, its high thermal conductivity enables it to maintain high power pumping (the thermal conductivity of 2 at.% Yb: CALGO along the a and c axes is 6.9 and 6.3 WK-1 m-1, respectively); The generation of very short pulses and high average power femtosecond oscillators has been proven.
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Compared with titanium doped sapphire crystals, Yb3+: CaGdAlO4 crystals can generate very short and powerful pulses. Yb: CALGO can directly pump semiconductor lasers with high efficiency and power


Product Features


*High thermal conductivity

*Large gain bandwidth

*Wide transmission bandwidth

*Low refractive index temperature gradient

*High power InGaAs laser diode covering Absorption band


Product Application


*Solid-state femtosecond oscillator

*Ultra fast solid-state lasers - time resolved spectroscopy, multiphoton imaging, microfabrication, refractive surgery, particle acceleration, *X-ray generation, fusion, etc.

*Mode-locked laser

*BAW device

*Diode pumped short pulse Modelock laser

*Femtosecond laser technology

*The dual color dual pulse scheme - Yb: CALGO, can generate dual pulses of different wavelengths. To our knowledge, this is the first demonstration of dual color femtosecond dual pulse operation. A very wide spectrum was obtained, with a bandwidth greater than 30 nm (Figure 4). The spectrum can be fitted with two Gaussians: one centered at 1040 nm with a bandwidth of 21 nm, and the other centered at 1057 nm with a bandwidth of 10 nm, with a lower amplitude (60%)








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