A Simple Key For KYW Crystal Unveiled
A Simple Key For KYW Crystal Unveiled
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Femtosecond laser depending on Yb:KYW crystals with suppression of spectral narrowing inside of a regenerative amplifier by spectral profiling of the heartbeat
FIG. four. Autocorrelation function of the pulse 共a兲and spectrum 共b兲of a laser with an oblong Lively aspect for an output energy of 700 mW. The width of
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW a result of the comparable sizes of those chemical components as much as one hundred% of Yb-doping may very well be achieved. This exceptional characteristic permits ytterbium to take the put of yttrium with nearly no disruption to your crystal’s lattice.
Following air drying and subsequent cleaning using a cotton fabric soaked in Liquor, the film area confirmed no indications of peeling or scratches.
FIG. one. Optical structure of the laser with immediate pumping With all the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output
Spatial structure on the beam and also the corresponding intensity profiles I within the output from the laser.
... at 50 %-top have been created within a master oscillator with selfsynchronization of your axial modes, explained inside our before article. 21 The new version of the more info laser, contrary to that explained within our previously write-up, employed an Yb:KYW crystal using an N pcut (optical axis N p on the index ellipsoid was parallel for the propagation route on the laser radiation), Together with the polarization with the produced radiation directed along the N m axis.
Nevertheless, the moment Nd3+:YAG grew to become commercially obtainable, the interest in CaWO4 dropped sharply. In later years, sure other tungstate crystals started to entice lots of awareness.
Even though ytterbium-doped laser obtain media typically exhibit a small quantum defect, ytterbium-doped tungstates allow for significantly little values. Such as, a 1030-nm Yb:YAG laser would Typically be pumped all around 940 nm, Whilst Yb:KGW or Yb:KYW could possibly be most efficiently pumped about 981 nm.
This tandem of attributes has far-achieving implications, specially in the construction of compact however powerfull lasers.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at area temperature had been measured. The emission spectrum and life span from the 3 File 4 fired up state have been determined. Making use of typical and modified Judd–Ofelt theories, the depth parameters and also the radiative lifetimes have been calculated and fantastic settlement Using the experimental final results was received for both equally theories.
Talk to RP Photonics for virtually any tips regarding tungstate lasers, such as femtosecond lasers and high-ability lasers.