KYW Crystal - An Overview
KYW Crystal - An Overview
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is actually a amazing materials that plays an essential position in laser engineering. Its Principal operate is usually to make ultrashort pulses of light, spanning only a few hundred femtoseconds.
Femtosecond laser dependant on Yb:KYW crystals with suppression of spectral narrowing inside a regenerative amplifier by spectral profiling of the heart beat
The absorption and emission spectra of Yb:KYW Crystals Exhibit sturdy peaks at 980 nm and 1030 nm, respectively, ensuring efficient Vitality conversion and high functionality in laser devices.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW as a result of equivalent sizes of such chemical things as many as a hundred% of Yb-doping may very well be reached. This exceptional characteristic permits ytterbium to go ahead and take area of yttrium with almost no disruption into the crystal’s lattice.
Adhesion Test Compliant with MIL-C-675C armed service standards, an adhesion test associated making use of a tape that fulfills LT-ninety technical specs onto the lens movie layer. The tape was affixed entirely then eliminated vertically. This course of action was done three times, causing no blistering or peeling.
Raman, luminescence and transmission spectra expose optical features owing for the presence of thulium ions, and thus the supplies may be even further examined from the scope of laser and luminescence purposes.
Tungstates are likely to have large Raman coefficients (�?Raman scattering). Thus, they can produce important Raman obtain at moderate optical intensities. It is possible to use the laser crystal alone to be a Raman converter.
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... Not simply the posture of crystal inside the cavity and also the amplification axis of crystal impacts the laser operation greatly, as the absorption and emission cross sections of your crystal are pretty unique based on the orientation on the crystal.
The thermal conductivity of prevalent double tungstates is in the get to 3–four W/(K m) �?which is not terrible in contrast with other laser crystals (Whilst numerous situations lower than for YAG), and rather big in comparison While using the thermal conductivity of standard Eyeglasses.
This tandem of characteristics has far-reaching implications, notably in the development of compact nonetheless powerfull lasers.
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 File four excited state have been decided. Applying standard and modified Judd–Ofelt theories, the intensity parameters and also the radiative lifetimes had been calculated and excellent arrangement Together with the experimental benefits was received for equally theories.
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