KYW Crystal Options
KYW Crystal Options
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The comparison with glasses is acceptable Considering that the big attain bandwidth will allow e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
The Yb:KYW crystal’s proficiency in light absorption at close to 981 nm helps make the crystal compatible for diode pumping. It is actually additional enhanced by its impressive effectiveness in this method, coupled with its low quantum defect.
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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to the similar sizes of these chemical factors approximately one hundred% of Yb-doping may very well be obtained. This distinctive characteristic permits ytterbium to take the place of yttrium with virtually no disruption into the crystal’s lattice.
The monoclinic crystal constructions leads to a normal birefringence, helping to stay away from thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra reveal optical characteristics owing on the presence of thulium ions, and for that reason the elements could be more researched inside the scope of laser and luminescence programs.
Tungstates are likely to have higher Raman coefficients (�?Raman scattering). As a result, they will deliver sizeable Raman gain at average optical intensities. It is possible to utilize the laser crystal itself as being a Raman converter.
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... Not merely the placement of crystal from the cavity and also the amplification axis of crystal influences the laser operation considerably, as the absorption and emission website cross sections of your crystal are pretty distinctive in accordance with the orientation on the crystal.
The thermal conductivity of popular double tungstates is from the buy to 3–four W/(K m) �?which is not lousy in comparison with other laser crystals (Even though various instances under for YAG), and quite substantial compared Along with the thermal conductivity of usual glasses.
Li2WO4-WO3 flux was effectively utilized reducing the growth temperature underneath 900 oC. Based on single crystal x-ray measurements, the crystal corresponds for the P2/n Room team.
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