Considerations To Know About KYW Crystal
Considerations To Know About KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is really a remarkable product that performs a crucial job in laser engineering. Its Most important perform is usually to produce ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
The Yb:KYW crystal’s proficiency in light-weight absorption at all around 981 nm makes the crystal well suited for diode pumping. It is actually even more enhanced by its amazing efficiency in this process, coupled with its very low quantum defect.
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This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with direct longitudinal pumping by effective linear arrays of semiconductor injection lasers obtaining fiber output. To forestall spectral narrowing all through amplification as well as corresponding lengthening on the amplified pulse when it truly is compressed, a combination of two Yb:KYW crystals had been used, with the spectral maxima of your amplification shifted relative to one another and with spectral profiling on the amplified radiation.
Immediately after air drying and subsequent cleaning with a cotton cloth soaked in alcohol, the film surface area confirmed no signs of peeling or scratches.
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A higher brightnessQ-switched oscillator and regenerative amplifier depending on a twin-crystal Yb:KGW laser
... at 50 percent-height have been generated within a learn oscillator with selfsynchronization of your axial modes, described inside our earlier write-up. 21 The new edition on the laser, compared with that described within our previously short article, utilised an Yb:KYW crystal with the N pcut (optical axis N p of your index ellipsoid was parallel on the propagation path of the laser radiation), Using the polarization of your generated radiation directed alongside the N m axis.
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW due to the identical measurements of those chemical features as many as 100% of Yb-doping can be accomplished.
Even though ytterbium-doped laser gain media usually show a small quantum defect, ytterbium-doped tungstates allow for for notably small values. As an example, a 1030-nm Yb:YAG laser would Generally be pumped close to 940 nm, Whilst Yb:KGW or Yb:KYW can be most successfully pumped all over 981 nm.
Li2WO4-WO3 here flux was productively used minimizing the growth temperature beneath 900 oC. In keeping with single crystal x-ray measurements, the crystal corresponds to the P2/n House group.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at place temperature ended up calculated. The emission spectrum and lifetime from the three File four excited state were decided. Working with typical and modified Judd–Ofelt theories, the intensity parameters and also the radiative lifetimes had been calculated and excellent settlement with the experimental benefits was received for both theories.
Question RP Photonics for any information regarding tungstate lasers, including femtosecond lasers and significant-electrical power lasers.