Top Guidelines Of KYW Crystal
Top Guidelines Of 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 exceptional material that plays an important job in laser know-how. Its Principal perform should be to make ultrashort pulses of light, spanning just a couple hundred femtoseconds.
time. Crystals of your compound melts congruently at 1007 oC, having said that soften crystallization of high quality crystal is unachievable resulting from stage changeover at ~920 oC. The very best seeded Option system from
The absorption and emission spectra of Yb:KYW Crystals display powerful peaks at 980 nm and 1030 nm, respectively, making certain productive Strength conversion and high efficiency in laser programs.
Ultrafast lasers, with pulse widths of some picoseconds (10−12 s) or less, enable some time resolution demanded in laser-psyched fluorescence life time spectroscopy and imaging tactics.Furthermore, they supply substantial pulse peak powers at substantial repetition charges and reasonable typical output powers.
Just before the event of Nd:YAG, Nd3+:CaWO4 was a vital uncommon-earth-doped laser get medium. It absolutely was in reality Utilized in the first continually running crystal laser.
FIG. 1. Optical layout of a laser with direct pumping with the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output
Spatial framework in the beam as well as the corresponding intensity profiles I in the output of the laser.
For tungstates, the ytterbium doping concentration can be quite significant without having major quenching because the replaced ions have an incredibly very similar ion radius, and also the inter-ion distance is fairly significant.
Nevertheless, after Nd3+:YAG turned commercially available, the curiosity in CaWO4 dropped sharply. In later on yrs, sure other tungstate crystals began to entice plenty of consideration.
When ytterbium-doped laser obtain media frequently show a little quantum defect, ytterbium-doped tungstates permit for specially smaller values. Such as, a 1030-nm Yb:YAG laser would Ordinarily be pumped all-around 940 nm, While Yb:KGW or Yb:KYW can be most successfully pumped around 981 nm.
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