New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The comparison with Eyeglasses is appropriate Considering that the huge get bandwidth permits e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
The Yb:KYW crystal’s proficiency in light-weight absorption at around 981 nm would make the crystal well matched for diode pumping. It's even more Increased by its extraordinary efficiency in this process, coupled with its low quantum defect.
The absorption and emission spectra of Yb:KYW Crystals display powerful peaks at 980 nm and 1030 nm, respectively, making certain effective Strength conversion and substantial performance in laser systems.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW mainly because of the similar sizes of these chemical factors as many as a hundred% of Yb-doping may very well be obtained. This unique attribute permits ytterbium to go ahead and take position of yttrium with pretty much no disruption into the crystal’s lattice.
The monoclinic crystal buildings ends in a organic birefringence, helping to avoid thermally induced polarization rotation and depolarization decline.
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Tungstates tend to have higher Raman coefficients (�?Raman scattering). As a result, they will make major Raman attain at average optical intensities. It can be done to make use of the laser crystal alone as being a Raman converter.
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... Don't just the situation of crystal inside the cavity and also the amplification axis of crystal affects the laser operation drastically, as the absorption and emission cross sections from the crystal are rather distinct according to the orientation in the crystal.
The thermal conductivity of popular double tungstates is of your get to 3–4 W/(K m) �?which is not bad as opposed with other laser crystals (Though a number of periods lower than for YAG), and rather large in comparison with the thermal conductivity of standard glasses.
Li2WO4-WO3 flux was successfully applied minimizing The expansion temperature down below 900 oC. In accordance with solitary crystal x-ray measurements, the crystal corresponds to your P2/n House team.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at home temperature were measured. The emission spectrum and lifetime in the 3 F 4 fired up condition ended up identified. Applying standard and modified Judd–Ofelt theories, the depth parameters and the radiative lifetimes were calculated and great agreement Using the check here experimental outcomes was acquired for the two theories.
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