Details, Fiction and KYW Crystal
Details, Fiction and KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, as compared to its counterpart Yb:KGW, is a extraordinary materials that plays a crucial part in laser know-how. Its Key purpose will be to crank out ultrashort pulses of light, spanning just a couple hundred femtoseconds.
The Yb:KYW crystal’s proficiency in gentle absorption at all-around 981 nm can make the crystal well matched for diode pumping. It is further more enhanced by its exceptional effectiveness in this method, coupled with its lower quantum defect.
FIG. 4. Autocorrelation purpose of the pulse 共a兲and spectrum 共b兲of the laser with an oblong active ingredient for an output electrical power of seven-hundred mW. The width of
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW due to identical sizes of these chemical components around one hundred% of Yb-doping may be realized. This exceptional attribute permits ytterbium to take the spot of yttrium with practically no disruption towards the crystal’s lattice.
Adhesion Take a look at Compliant with MIL-C-675C armed service expectations, an adhesion examination included applying a tape that meets LT-90 requirements on to the lens film layer. The tape was affixed thoroughly after which you can removed vertically. This process was performed thrice, causing no blistering or peeling.
Raman, luminescence and transmission spectra reveal optical characteristics owing to your existence of thulium ions, and for that reason the resources can be further more examined during the scope of laser and luminescence purposes.
5 mm aside from the middle of your beam caustic. So as to Check out the mode matching simulation, we executed the experiment with Ng-Slice crystal oscillator, which was designed Formerly As well as in a identical problem with simulation [eleven]. As proven in Determine 3(b) with red dots and line, the CW output electric power is highly depending on the place of laser crystal as well as experimental end result coincides well with simulation end result. As a Notice, multimode Procedure occurred in experiment once the dimensions of the pump beam is bigger than TEM00 cavity method and it results in greater CW output electricity during the displacement location under three.five mm.
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW mainly because of the very similar measurements of these chemical things approximately one hundred% of Yb-doping might be obtained.
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