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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is often a remarkable material that plays an essential part in laser technological innovation. Its Key purpose should be to crank out ultrashort pulses of sunshine, spanning just some hundred femtoseconds.

We existing a twin-crystal Yb:KGW laserthat iscapable to work for a Q-switched oscillator with output ability as much as 24 W and pulse length of 20 ns,or as being a regenerative amplifier with output energy around 21 W and pulse duration beneath two hundred fs after compression of chirped pulses. Both lasers have fantastic beam excellent with beam parameter M2

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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW due to similar sizes of these chemical factors approximately one hundred% of Yb-doping may be realized. This one of a kind characteristic permits ytterbium to take the location of yttrium with practically no disruption towards the crystal’s lattice.

The monoclinic crystal structures results in a all-natural birefringence, assisting to steer clear of thermally induced polarization rotation and depolarization reduction.

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5 mm apart from the middle from the beam caustic. In order to Check out the manner matching simulation, we done the experiment with Ng-Reduce crystal oscillator, which was formulated Formerly As well as in a same affliction with simulation [eleven]. As proven in Determine three(b) with red dots and line, the CW output electricity is very dependent on the situation of laser crystal and also the experimental end result coincides perfectly with simulation outcome. Being a Observe, multimode Procedure occurred in experiment when the measurement with the pump beam is larger sized than TEM00 cavity manner and it causes greater CW output electrical power inside the displacement area beneath 3.five mm.

... at 50 percent-height were being produced in a grasp oscillator with selfsynchronization from the axial modes, described inside our earlier article. 21 The new edition of the laser, contrary to that described within our before post, applied an Yb:KYW crystal with the N pcut (optical axis N p on the index ellipsoid was parallel to the propagation route with the laser radiation), Using the polarization on the created radiation directed together the N m axis.

By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW mainly because of the very similar measurements of these chemical features nearly one hundred% of Yb-doping could possibly be accomplished.

Although ytterbium-doped laser get media frequently show a little quantum defect, ytterbium-doped tungstates allow for for particularly little values. As an example, a 1030-nm Yb:YAG laser would Typically be pumped close to 940 nm, whereas Yb:KGW or Yb:KYW might be most efficiently pumped around 981 nm.

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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is a remarkable material that performs a significant position in laser website know-how. Its Principal purpose is usually to produce ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.

Talk to RP Photonics for almost any advice relating to tungstate lasers, which includes femtosecond lasers and superior-electricity lasers.