Rumored Buzz on KYW Crystal
Rumored Buzz on KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, compared to its counterpart Yb:KGW, is actually a amazing material that plays a vital job in laser technological innovation. Its Most important perform is always to crank out ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
Femtosecond laser based upon Yb:KYW crystals with suppression of spectral narrowing in a regenerative amplifier by spectral profiling of the heart beat
The absorption and emission spectra of Yb:KYW Crystals display solid peaks at 980 nm and 1030 nm, respectively, making certain efficient Strength conversion and higher effectiveness in laser techniques.
This paper describes a femtosecond laser regenerative amplifier based on two Yb:KYW crystals with direct longitudinal pumping by impressive linear arrays of semiconductor injection lasers obtaining fiber output. To stop spectral narrowing during amplification and the corresponding lengthening on the amplified pulse when it's compressed, a mix of two Yb:KYW crystals were being used, with the spectral maxima on the amplification shifted relative to one another and with spectral profiling in the amplified radiation.
The monoclinic crystal structures results in a all-natural birefringence, helping to stay away from thermally induced polarization rotation and depolarization reduction.
Raman, luminescence and transmission spectra reveal optical capabilities owing for the existence of thulium ions, and so the supplies can be even more studied from the scope of laser and luminescence programs.
Spatial framework on the beam along with the corresponding intensity profiles I on the output in the laser.
For tungstates, the ytterbium doping focus can be very significant with no considerable quenching because the changed ions have an extremely similar ion radius, as well as inter-ion distance is relatively substantial.
On the other hand, at the time Nd3+:YAG turned commercially accessible, the curiosity in CaWO4 dropped sharply. In later a long time, specified other tungstate crystals started to draw in many awareness.
Whilst ytterbium-doped laser gain media frequently show a little quantum defect, ytterbium-doped tungstates allow for specially small values. Such as, a 1030-nm Yb:YAG laser would Usually be pumped about 940 nm, Whilst Yb:KGW or Yb:KYW could possibly be most successfully pumped close to 981 nm.
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The KYW Crystal polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at space temperature have been calculated. The emission spectrum and life time on the 3 F four fired up condition ended up identified. Employing typical and modified Judd–Ofelt theories, the intensity parameters and the radiative lifetimes had been calculated and very good settlement While using the experimental benefits was received for the two theories.
Talk to RP Photonics for any tips relating to tungstate lasers, together with femtosecond lasers and superior-energy lasers.