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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, is a outstanding content that plays a significant position in laser technology. Its Principal operate will be to deliver ultrashort pulses of light, spanning only a few hundred femtoseconds.
We current a twin-crystal Yb:KGW laserthat iscapable to operate like a Q-switched oscillator with output power as many as 24 W and pulse length of 20 ns,or as a regenerative amplifier with output power around 21 W and pulse length below two hundred fs right after compression of chirped pulses. Each lasers have outstanding beam top quality with beam parameter M2
Colour-coded reflectivity of a Bragg mirror like a operate of wavelength and angle of the incident beam.
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW due to the very similar measurements of such chemical components as many as one hundred% of Yb-doping can be obtained. This exclusive characteristic permits ytterbium to go ahead and take location of yttrium with virtually no disruption for the crystal’s lattice.
The monoclinic crystal buildings brings about a all-natural birefringence, helping to avoid thermally induced polarization rotation and depolarization decline.
Raman, luminescence and transmission spectra reveal optical features owing towards the existence of thulium ions, and as a consequence the components may very well be further examined during the scope of laser and luminescence apps.
Spatial construction in the beam plus the corresponding intensity profiles I at the output from the laser.
... at fifty percent-top ended up created inside of a master oscillator with selfsynchronization of the axial modes, explained within our earlier posting. 21 The new edition in the laser, compared with that described within our before post, employed an Yb:KYW crystal having an N pcut (optical axis N p from the index ellipsoid was parallel to your propagation direction from the laser radiation), Along with the polarization of the generated radiation directed along the N m axis.
... Not just the placement of crystal while in the cavity but in addition the amplification axis of crystal influences the laser operation KYW Crystal drastically, since the absorption and emission cross sections of your crystal are quite different in accordance with the orientation of your crystal.
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The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at space temperature were being measured. The emission spectrum and life time from the three File 4 energized state have been determined. Employing conventional and modified Judd–Ofelt theories, the intensity parameters plus the radiative lifetimes had been calculated and very good settlement With all the experimental effects was obtained for the two theories.
Question RP Photonics for just about any advice relating to tungstate lasers, which includes femtosecond lasers and significant-energy lasers.