Considerations To Know About KYW Crystal
Considerations To Know About KYW Crystal
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The comparison with glasses is acceptable Considering that the big achieve bandwidth permits e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
The Yb:KYW crystal’s proficiency in gentle absorption at around 981 nm helps make the crystal compatible for diode pumping. It is actually even further Increased by its outstanding efficiency in this process, coupled with its reduced quantum defect.
FIG. four. Autocorrelation perform of the heart beat 共a兲and spectrum 共b兲of a laser with a rectangular Lively component for an output power of seven hundred mW. The width of
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW a result of the very similar sizes of these chemical factors approximately one hundred% of Yb-doping may very well be obtained. This unique attribute permits ytterbium to go ahead and take put of yttrium with virtually no disruption to the crystal’s lattice.
The monoclinic crystal structures results in a natural birefringence, assisting to prevent thermally induced polarization rotation and depolarization reduction.
Raman, luminescence and transmission spectra expose optical attributes owing into the existence of thulium ions, and as a consequence the elements may very well be even more analyzed while in the scope of laser and luminescence applications.
A significant brightnessQ-switched oscillator and regenerative amplifier according to a dual-crystal Yb:KGW laser
... at fifty percent-height were being produced in the master oscillator with selfsynchronization of the axial modes, explained in our before report. 21 The new version of your laser, contrary to that explained in our previously report, employed an Yb:KYW crystal with an N pcut (optical axis N p on the index ellipsoid was parallel towards the propagation way in the laser radiation), While using the polarization of the produced radiation directed together the N m axis.
... Not simply the situation of crystal during the cavity but also the amplification axis of crystal affects the laser Procedure greatly, as the absorption and emission cross sections of your crystal are rather unique based on the orientation on the crystal.
The thermal conductivity of common double tungstates is on the purchase to three–4 W/(K m) �?which isn't poor when compared with other laser crystals (Though several moments less than for YAG), and reasonably significant in comparison While using the thermal conductivity of common glasses.
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