The Definitive Guide to KYW Crystal
The Definitive Guide to KYW Crystal
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The comparison with Eyeglasses is suitable Because the big acquire bandwidth allows e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
The Yb:KYW crystal’s proficiency in gentle absorption at all over 981 nm tends to make the crystal like minded for diode pumping. It can be further enhanced by its exceptional efficiency in this method, coupled with its very low quantum defect.
FIG. 4. Autocorrelation functionality of the heart beat 共a兲and spectrum 共b兲of a laser with an oblong active factor for an output power of seven hundred mW. The width of
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW as a result of identical dimensions of those chemical factors as much as a hundred% of Yb-doping may be accomplished. This unique attribute permits ytterbium to take the place of yttrium with pretty much no disruption into the crystal’s lattice.
The monoclinic crystal structures results in a normal birefringence, helping to stay away from thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra expose optical options owing towards the presence of thulium ions, and thus the components may be even further examined from the scope of laser and luminescence apps.
Tungstates are inclined to have higher Raman coefficients (�?Raman scattering). As a result, they will make major Raman obtain at reasonable optical intensities. It is feasible to use the laser crystal itself to be a Raman converter.
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Nevertheless, after Nd3+:YAG turned commercially accessible, the curiosity in CaWO4 dropped sharply. In later on several years, sure other tungstate crystals started to appeal to a great deal of awareness.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is usually a extraordinary product that plays a crucial function in laser technologies. Its Main functionality will be to create ultrashort pulses of light, spanning just a few hundred femtoseconds.
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