KYW Crystal Options
KYW Crystal Options
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, can be a extraordinary substance that plays an important purpose in laser technological innovation. Its Major operate would be to deliver ultrashort pulses of light, spanning only a few hundred femtoseconds.
We current a dual-crystal Yb:KGW laserthat iscapable to operate like a Q-switched oscillator with output electric power up to 24 W and pulse length of 20 ns,or as a regenerative amplifier with output electricity up to 21 W and pulse length beneath 200 fs right after compression of chirped pulses. The two lasers have excellent beam quality with beam parameter M2
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW as a result of very similar dimensions of these chemical features up to a hundred% of Yb-doping may be obtained. This unique characteristic permits ytterbium to take the put of yttrium with virtually no disruption to the crystal’s lattice.
The monoclinic crystal buildings ends in a organic birefringence, helping to avoid thermally induced check here polarization rotation and depolarization decline.
Raman, luminescence and transmission spectra reveal optical features owing for the existence of thulium ions, and thus the resources may very well be further more examined in the scope of laser and luminescence applications.
Spatial structure of the beam and also the corresponding depth profiles I within the output of your laser.
For tungstates, the ytterbium doping concentration can be quite high devoid of significant quenching since the changed ions have a very equivalent ion radius, plus the inter-ion length is relatively massive.
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW because of the similar dimensions of those chemical elements nearly one hundred% of Yb-doping might be obtained.
The thermal conductivity of popular double tungstates is with the purchase to three–4 W/(K m) �?which isn't poor when compared with other laser crystals (Though quite a few instances less than for YAG), and reasonably significant in contrast Along with the thermal conductivity of common Eyeglasses.
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