KYW Crystal - An Overview
KYW Crystal - An Overview
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In realistic conditions, the Yb:KYW crystal has observed its specialized niche in significant-ability laser purposes as a consequence of its power to crank out significant Electricity ultrashort laser pulses when keeping a compact size. The interaction of its functions �?seamless ytterbium substitution, powerful absorption properties, ultrashort pulse technology and effectiveness in energy conversion �?positions the Yb:KYW crystal for a cornerstone inside the laser engineering, covering diverse fields starting from scientific research to industrial programs.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, is a outstanding content that plays a vital position in laser engineering. Its Major perform is always to create ultrashort pulses of sunshine, spanning just a few hundred femtoseconds.
time. Crystals with the compound melts congruently at 1007 oC, however soften crystallization of top of the range crystal is difficult resulting from section transition at ~920 oC. The best seeded Option process from
FIG. four. Autocorrelation function of the heartbeat 共a兲and spectrum 共b兲of the laser with an oblong Energetic ingredient for an output electrical power of 700 mW. The width of
By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW mainly because of the similar sizes of these chemical factors as many as 100% of Yb-doping may be realized. This one of a kind attribute permits ytterbium to go ahead and take area of yttrium with almost no disruption on the crystal’s lattice.
The monoclinic crystal buildings brings about a pure birefringence, helping to stay away from thermally induced polarization rotation and depolarization loss.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and they are utilised as lasing components to produce ultrashort (~ a hundred-200 fs) higher power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser devices.
5 mm aside from the middle with the beam caustic. So as KYW Crystal to Check out the mode matching simulation, we executed the experiment with Ng-Slice crystal oscillator, which was designed previously As well as in a identical problem with simulation [11]. As revealed in Figure three(b) with crimson dots and line, the CW output power is very dependent on the situation of laser crystal and also the experimental final result coincides effectively with simulation final result. Like a Observe, multimode operation transpired in experiment if the size in the pump beam is larger sized than TEM00 cavity method and it results in greater CW output electricity during the displacement region beneath 3.5 mm.
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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW a result of the comparable dimensions of such chemical factors nearly one hundred% of Yb-doping can be attained.
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Simultaneously, a shorter laser wavelength may be attained; it is feasible to work by using a quantum defect nicely underneath 1%. For a consequence, the heat era can be so modest this partly compensates the reduced thermal conductivity.