The 5-Second Trick For KYW Crystal
The 5-Second Trick For KYW Crystal
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The Yb:KYW crystal’s proficiency in gentle absorption at all around 981 nm helps make the crystal like minded for diode pumping. It's further Increased by its amazing effectiveness in this process, coupled with its small quantum defect.
FIG. 4. Autocorrelation purpose of the pulse 共a兲and spectrum 共b兲of the laser with a rectangular Energetic element for an output electricity of 700 mW. The width of
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW due to the very similar dimensions of such chemical aspects up to one hundred% of Yb-doping could be attained. This exclusive attribute permits ytterbium to go ahead and take position of yttrium with almost no disruption to your crystal’s lattice.
The monoclinic crystal constructions results in a natural birefringence, helping to prevent thermally induced polarization rotation and depolarization loss.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and so are used as lasing resources to generate ultrashort (~ a hundred-two hundred fs) high electrical power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser devices.
Spatial structure from the beam plus the corresponding intensity profiles I on the output in the laser.
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By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW mainly because of the identical dimensions of those chemical components as much as a hundred% of Yb-doping can be realized.
While ytterbium-doped laser get media usually show a small quantum defect, ytterbium-doped tungstates make it possible for for specifically little values. Such as, a 1030-nm Yb:YAG laser would Typically be pumped all-around 940 nm, whereas Yb:KGW or Yb:KYW may very well be most efficiently pumped all around 981 nm.
Li2WO4-WO3 flux was properly applied lessening click here the growth temperature under 900 oC. Based on single crystal x-ray measurements, the crystal corresponds for the P2/n Room group.
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Concurrently, a shorter laser wavelength is usually obtained; it is possible to function by using a quantum defect very well down below one%. As a consequence, the heat technology may be so tiny that this partly compensates the decrease thermal conductivity.