Getting My KYW Crystal To Work
Getting My KYW Crystal To Work
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The attain bandwidth e.g. of Yb:KGW and Yb:KYW is rather huge compared with that of Yb:YAG. This enables for extensive wavelength tunability and for much shorter pulse durations from manner-locked lasers. Values perfectly below 100 fs are already accomplished with passive mode locking.
This distinctive attribute of ultrafast pulses enables nonlinear optical interaction with tissue at minimal Total publicity, and drives applications for example deep-tissue multiphoton microscopy and large-precision eye medical procedures
time. Crystals with the compound melts congruently at 1007 oC, on the other hand soften crystallization of top quality crystal is unattainable resulting from period transition at ~920 oC. The highest seeded Alternative strategy from
FIG. four. Autocorrelation functionality of the heart beat 共a兲and spectrum 共b兲of a laser with an oblong Energetic component for an output power of 700 mW. The width of
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW because of the similar measurements of these chemical features as much as 100% of Yb-doping may be obtained. This exceptional characteristic permits ytterbium to take the location of yttrium with practically no disruption to your crystal’s lattice.
The monoclinic crystal buildings results in a pure birefringence, assisting to stay clear of thermally induced polarization rotation and depolarization reduction.
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5 mm other than the center on the beam caustic. So that you can check the method matching simulation, we done the experiment with Ng-Minimize crystal oscillator, which was designed Earlier As well as in a similar issue with simulation [eleven]. As proven in Determine three(b) with red dots and line, the CW output electrical power is extremely dependent on the position of laser crystal along with the experimental outcome coincides perfectly with simulation end result. For a note, multimode operation transpired in experiment once the dimensions from the pump beam is much larger than TEM00 cavity method and it leads to larger CW output ability in the displacement region down below 3.five mm.
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By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW mainly because of the similar dimensions of such chemical aspects as many as a hundred% of Yb-doping can be achieved.
When ytterbium-doped laser obtain media generally show a small quantum defect, ytterbium-doped tungstates allow for specifically compact values. One example is, a 1030-nm Yb:YAG laser would Ordinarily be pumped close to more info 940 nm, whereas Yb:KGW or Yb:KYW could possibly be most proficiently pumped all-around 981 nm.
This tandem of characteristics has considerably-achieving implications, significantly in the development of compact yet powerfull lasers.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at home temperature were being calculated. The emission spectrum and lifetime on the three F 4 enthusiastic condition were determined. Employing conventional and modified Judd–Ofelt theories, the intensity parameters and also the radiative lifetimes have been calculated and great agreement Together with the experimental results was received for both theories.
Question RP Photonics for any suggestions relating to tungstate lasers, together with femtosecond lasers and high-energy lasers.