Details, Fiction and KYW Crystal
Details, Fiction and KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, is really a impressive product that performs a vital role in laser technologies. Its Key perform should be to crank out ultrashort pulses of light, spanning just a few hundred femtoseconds.
We present a dual-crystal Yb:KGW laserthat iscapable to function to be a Q-switched oscillator with output energy as much as 24 W and pulse duration of twenty ns,or as a regenerative amplifier with output energy around 21 W and pulse length under 200 fs after compression of chirped pulses. Both lasers have superb beam high quality with beam parameter M2
FIG. 4. Autocorrelation purpose of the heartbeat 共a兲and spectrum 共b兲of the laser with an oblong Lively factor for an output energy of seven-hundred mW. The width of
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW because of the identical dimensions of these chemical components approximately one hundred% of Yb-doping can be accomplished. This special characteristic permits ytterbium to take the area of yttrium with pretty much no disruption for the crystal’s lattice.
Prior to click here the event of Nd:YAG, Nd3+:CaWO4 was a very important exceptional-earth-doped laser obtain medium. It absolutely was actually used in the 1st constantly running crystal laser.
Raman, luminescence and transmission spectra reveal optical functions owing on the presence of thulium ions, and therefore the components could possibly be further more analyzed inside the scope of laser and luminescence apps.
Spatial framework on the beam as well as the corresponding depth profiles I at the output of the laser.
For tungstates, the ytterbium doping focus can be very large without the need of significant quenching since the changed ions have an extremely very similar ion radius, as well as inter-ion distance is pretty massive.
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW because of the similar dimensions of those chemical components nearly one hundred% of Yb-doping could possibly be achieved.
The thermal conductivity of popular double tungstates is on the order to three–four W/(K m) �?which is not lousy in comparison with other laser crystals (although various occasions a lot less than for YAG), and pretty substantial compared Together with the thermal conductivity of usual glasses.
Li2WO4-WO3 flux was correctly applied minimizing The expansion temperature below 900 oC. Based on solitary crystal x-ray measurements, the crystal corresponds for the P2/n Room team.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is usually a extraordinary product that performs a significant position in laser technological know-how. Its Key purpose is usually to create ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
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