Fascination About KYW Crystal
Fascination About KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, can be a exceptional content that plays a vital part in laser engineering. Its primary purpose is to produce ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
The Yb:KYW crystal’s proficiency in light-weight absorption at about 981 nm can make the crystal well matched for diode pumping. It's even more Improved by its outstanding effectiveness in this process, coupled with its very low quantum defect.
FIG. four. Autocorrelation functionality of the pulse 共a兲and spectrum 共b兲of the laser with an oblong active component for an output electric power of 700 mW. The width of
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW due to the comparable measurements of those chemical aspects as many as a hundred% of Yb-doping can be achieved. This unique attribute permits ytterbium to go ahead and take position of yttrium with pretty much no disruption to the crystal’s lattice.
The monoclinic crystal buildings brings about a purely natural birefringence, assisting to keep away from thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra expose optical characteristics owing into the existence of website thulium ions, and so the resources may very well be further more examined during the scope of laser and luminescence purposes.
Spatial construction from the beam and also the corresponding depth profiles I within the output with the laser.
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... Don't just the posture of crystal in the cavity but also the amplification axis of crystal affects the laser operation drastically, since the absorption and emission cross sections on the crystal are very diverse according to the orientation from the crystal.
The thermal conductivity of popular double tungstates is in the get to three–four W/(K m) �?which is not lousy in comparison with other laser crystals (although many instances fewer than for YAG), and relatively significant in contrast While using the thermal conductivity of common glasses.
Li2WO4-WO3 flux was effectively utilized lessening the growth temperature beneath 900 oC. As outlined by one crystal x-ray measurements, the crystal corresponds to the P2/n Area group.
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