KYW Crystal - An Overview
KYW Crystal - An Overview
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The comparison with glasses is appropriate since the significant get bandwidth makes it possible for e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
Femtosecond laser dependant on Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heartbeat
The absorption and emission spectra of Yb:KYW Crystals Exhibit potent peaks at 980 nm and 1030 nm, respectively, making sure efficient Power conversion and large functionality in laser programs.
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW due to the equivalent measurements of these chemical factors as many as one hundred% of Yb-doping may very well be realized. This exceptional attribute permits ytterbium to take the spot of yttrium with almost no disruption on the crystal’s lattice.
The monoclinic crystal structures brings about a purely natural birefringence, assisting to keep away from thermally induced polarization rotation and depolarization reduction.
Raman, luminescence and transmission spectra expose optical features owing towards the presence of thulium ions, and thus the resources may very well be even further analyzed while in the scope of laser and luminescence purposes.
Spatial structure of your beam as well as corresponding depth profiles I with the output on KYW Crystal the laser.
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... Don't just the posture of crystal in the cavity but additionally the amplification axis of crystal impacts the laser operation tremendously, because the absorption and emission cross sections in the crystal are really diverse according to the orientation from the crystal.
The thermal conductivity of popular double tungstates is on the order to three–four W/(K m) �?which is not negative compared with other laser crystals (While a number of moments fewer than for YAG), and relatively significant in comparison While using the thermal conductivity of common Eyeglasses.
Li2WO4-WO3 flux was productively utilized minimizing The expansion temperature underneath 900 oC. In line with solitary crystal x-ray measurements, the crystal corresponds into the P2/n Area group.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at place temperature were measured. The emission spectrum and lifetime on the three File four psyched state have been decided. Working with standard and modified Judd–Ofelt theories, the depth parameters and the radiative lifetimes had been calculated and great agreement Using the experimental outcomes was obtained for both theories.
Simultaneously, a shorter laser wavelength may be attained; it is achievable to operate which has a quantum defect very well beneath one%. Like a consequence, the warmth era can be so modest that this partly compensates the lessen thermal conductivity.