A Simple Key For KYW Crystal Unveiled
A Simple Key For KYW Crystal Unveiled
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The comparison with glasses is appropriate Considering that the significant get bandwidth makes it possible for e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
The Yb:KYW crystal’s proficiency in mild absorption at all-around 981 nm helps make the crystal compatible for diode pumping. It is additional Improved by its impressive performance in this process, coupled with its reduced quantum defect.
FIG. 4. Autocorrelation operate of the heart beat 共a兲and spectrum 共b兲of the laser with a rectangular Energetic ingredient for an output electricity of seven-hundred mW. The width of
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW as a result of very similar dimensions of these chemical components around a hundred% of Yb-doping could be accomplished. This special characteristic permits ytterbium to take the place of yttrium with practically no disruption towards the crystal’s lattice.
The monoclinic crystal constructions leads to a organic birefringence, helping to avoid thermally induced polarization rotation and depolarization decline.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and so are employed as lasing supplies to generate ultrashort (~ a hundred-200 fs) high electric power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes functioning at 981 nm supports compact laser programs.
A substantial brightnessQ-switched oscillator and regenerative amplifier determined by a twin-crystal Yb:KGW laser
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By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW as a result of related sizes of these chemical elements around a hundred% of Yb-doping may be accomplished.
The thermal conductivity of typical double tungstates is on the buy to 3–four W/(K m) �?which is not undesirable when compared with other laser crystals (Even though various situations fewer than for YAG), and pretty huge in comparison Using the thermal conductivity of regular Eyeglasses.
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The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at room temperature had been measured. The emission spectrum and life time on the 3 F 4 fired up state had been established. Making use of normal and modified Judd–Ofelt theories, the intensity parameters as well as the radiative lifetimes had been calculated and fantastic arrangement Together with the experimental benefits was acquired for each theories.
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