Considerations To Know About KYW Crystal
Considerations To Know About KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, is a amazing product that plays a vital job in laser technological innovation. Its Most important function is always to crank out ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
We existing a twin-crystal Yb:KGW laserthat iscapable to operate being a Q-switched oscillator with output electric power nearly 24 W and pulse size of twenty ns,or as being a regenerative amplifier with output ability around 21 W and pulse length underneath 200 fs soon after compression of chirped pulses. Each lasers have exceptional beam quality with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals Screen strong peaks at 980 nm and 1030 nm, respectively, making sure efficient Electricity conversion and higher overall performance in laser systems.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW due to the similar measurements of these chemical aspects as much as 100% of Yb-doping might be realized. This distinctive characteristic permits ytterbium to go ahead and take spot of yttrium with nearly no disruption into the crystal’s lattice.
The monoclinic crystal structures results in a all-natural birefringence, assisting to stay away from thermally induced polarization rotation and depolarization reduction.
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five mm aside from the center from the beam caustic. So that you can Check out the method matching simulation, click here we carried out the experiment with Ng-Minimize crystal oscillator, which was produced Formerly As well as in a same condition with simulation [11]. As demonstrated in Figure three(b) with crimson dots and line, the CW output electrical power is highly depending on the posture of laser crystal and the experimental final result coincides very well with simulation consequence. As being a Notice, multimode operation occurred in experiment in the event the dimensions from the pump beam is more substantial than TEM00 cavity manner and it triggers greater CW output energy from the displacement region down below 3.5 mm.
... at 50 percent-peak had been generated in a grasp oscillator with selfsynchronization from the axial modes, described in our before post. 21 The new edition in the laser, in contrast to that described inside our previously post, utilised an Yb:KYW crystal having an N pcut (optical axis N p of the index ellipsoid was parallel to the propagation path of your laser radiation), Along with the polarization from the produced radiation directed together the N m axis.
... Don't just the position of crystal within the cavity but also the amplification axis of crystal influences the laser Procedure significantly, as the absorption and emission cross sections on the crystal are quite various based on the orientation on the crystal.
Although ytterbium-doped laser achieve media frequently exhibit a small quantum defect, ytterbium-doped tungstates make it possible for for specially tiny values. As an example, a 1030-nm Yb:YAG laser would Typically be pumped close to 940 nm, While Yb:KGW or Yb:KYW may be most successfully pumped close to 981 nm.
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