The smart Trick of KYW Crystal That No One is Discussing
The smart Trick of KYW Crystal That No One is Discussing
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The get bandwidth e.g. of Yb:KGW and Yb:KYW is rather huge when compared with that of Yb:YAG. This permits for extensive wavelength tunability and for A lot shorter pulse durations from manner-locked lasers. Values properly below one hundred fs have already been achieved with passive method locking.
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We present a twin-crystal Yb:KGW laserthat iscapable to function being a Q-switched oscillator with output electric power approximately 24 W and pulse size of 20 ns,or as being a regenerative amplifier with output energy up to 21 W and pulse period under 200 fs after compression of chirped pulses. Both equally lasers have fantastic beam high-quality with beam parameter M2
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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW a result of the related dimensions of such chemical things as many as one hundred% of Yb-doping may be reached. This special characteristic permits ytterbium to go ahead and take position of yttrium with almost no disruption for the crystal’s lattice.
Just after air drying and subsequent cleaning which has a cotton fabric soaked in alcohol, the film surface area confirmed no indications of peeling or scratches.
Raman, luminescence and transmission spectra reveal optical functions owing for the presence of thulium ions, and as a consequence the products may very well be even further researched within the scope of laser and luminescence purposes.
5 mm besides the center of the beam caustic. So that you can Check out the manner matching simulation, we performed the experiment with Ng-Slice crystal oscillator, which was produced Earlier As well as in a identical issue with simulation [eleven]. As revealed in Figure 3(b) with red dots and line, the CW output electricity is extremely depending on the situation of laser crystal along with the experimental final result coincides perfectly with simulation final result. As a note, multimode Procedure happened in experiment in the event the dimensions with the pump beam is larger sized than TEM00 cavity method and it brings about greater CW output energy in the displacement location underneath 3.five mm.
... at half-height ended up produced in a very master oscillator with selfsynchronization on the axial modes, explained in our earlier posting. 21 The new edition in the laser, contrary to that explained within our before posting, utilised an Yb:KYW crystal having an N pcut (optical axis N p of your index ellipsoid was parallel on the propagation way of the laser radiation), With all the polarization from the produced radiation directed along the N m axis.
Large-power repetitively pulsed ytterbium get more info lasers with supershort pulse width and direct diode pumping for technological and biomedical apps
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The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at place temperature were measured. The emission spectrum and life span on the 3 F 4 energized condition had been established. Applying standard and modified Judd–Ofelt theories, the depth parameters and the radiative lifetimes had been calculated and fantastic agreement Along with the experimental final results was obtained for the two theories.
Check with RP Photonics for almost any tips regarding tungstate lasers, which includes femtosecond lasers and higher-energy lasers.